Eclipse Theia 1.2.0

- [application-manager] added ability for clients to add `windowOptions` using an IPC-Event [#7803](https://github.com/eclipse-theia/theia/pull/7803)

- [application-package] added ability for clients to change the default `windowOptions` [#7803](https://github.com/eclipse-theia/theia/pull/7803)

- [cli] improved the handling of the `download:plugins` script [#7747](https://github.com/eclipse-theia/theia/pull/7747)

- [cli] support proxy settings in the `download:plugins` script [#7747](https://github.com/eclipse-theia/theia/pull/7747)

- [cli] updated the `download:plugins` script to display errors at the end of the script [#7881](https://github.com/eclipse-theia/theia/pull/7881)

- [core] added handling of nested default values in preference proxies [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [core] added handling to properly cleanup `toDisposeOnActiveChanged` [#7894](https://github.com/eclipse-theia/theia/pull/7894)

- [core] added handling to respect the keybinding scope and registration order during evaluation [#7839](https://github.com/eclipse-theia/theia/pull/7839)

- [core] added support for `next/previous` tab group commands [#7707](https://github.com/eclipse-theia/theia/pull/7707)

- [core] added support for `next/previous` tab in group commands [#7707](https://github.com/eclipse-theia/theia/pull/7707)

- [core] fixed collapsed state when restoring view-container parts [#7893](https://github.com/eclipse-theia/theia/pull/7893)

- [dependency] fixed issue with `momentjs` dependency [#7727](https://github.com/eclipse-theia/theia/pull/7727)

- [dependency] upgraded `decompress` to `4.2.0` [#7715](https://github.com/eclipse-theia/theia/pull/7715)

- [dependency] upgraded `uuid` to `8.0.0` [#7749](https://github.com/eclipse-theia/theia/pull/7749)

- [dependency] upgraded to TypeScript `3.9.2` [#7807](https://github.com/eclipse-theia/theia/pull/7807)

- [editor-preview] improved the editor-preview height [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [editor] improved focus handling of editors to default to the last visible editor [#7707](https://github.com/eclipse-theia/theia/pull/7707)

- [electron] fixed rendering of the electron context-menu [#7735](https://github.com/eclipse-theia/theia/pull/7735)

- [electron] fixed resolution of hostname placeholder [#7823](https://github.com/eclipse-theia/theia/pull/7823)

- [electron] fixed the rendering of webviews on electron [#7847](https://github.com/eclipse-theia/theia/pull/7847)

- [electron] improved rendering of electron context-menus to hide disabled menu items [#7869](https://github.com/eclipse-theia/theia/pull/7869)

- [electron] removed global shortcuts if the electron window is not focused [#7817](https://github.com/eclipse-theia/theia/pull/7817)

- [file-search] improved the handling of the quick-file open [#7846](https://github.com/eclipse-theia/theia/pull/7846)

- [filesystem] fixed issue where file-icons were not properly aligned when the file name is truncated [#7730](https://github.com/eclipse-theia/theia/pull/7730)

- [getting-started] updated the documentation urls [#7855](https://github.com/eclipse-theia/theia/pull/7855)

- [git] added handling to set upstream remote branch when pushing [#7866](https://github.com/eclipse-theia/theia/pull/7866)

- [git] fixed issue causing no repositories to be found [#7870](https://github.com/eclipse-theia/theia/pull/7870)

- [monaco] added handling of internal open calls with the `OpenerService` [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [monaco] added handling to only focus the editor if it is revealed [#7903](https://github.com/eclipse-theia/theia/pull/7903)

- [monaco] fixed issue to detect languages on mime association changes [#7805](https://github.com/eclipse-theia/theia/pull/7805)

- [monaco] fixed the border color for the find widget [#7835](https://github.com/eclipse-theia/theia/pull/7835)

- [navigator] added handling to select newly created files/folders in the explorer [#7762](https://github.com/eclipse-theia/theia/pull/7762)

- [output] improved the output-view display [#7827](https://github.com/eclipse-theia/theia/pull/7827)

- [plugin] added handling of quick pick/input cancellations [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [plugin] added support for `CompletionItem.range` shape [#7820](https://github.com/eclipse-theia/theia/pull/7820)

- [plugin] added support for `explorer.newFolder` command [#7843](https://github.com/eclipse-theia/theia/pull/7843)

- [plugin] added support for `workbench.action.revertAndCloseActiveEditor` API [#7702](https://github.com/eclipse-theia/theia/pull/7702)

- [plugin] added support for the `vscode.workspace.fs` APIs for registered filesystem providers only (not yet real file system) [#7824](https://github.com/eclipse-theia/theia/pull/7824)

- [plugin] added support for the `workbench.action.openRecent` command [#7812](https://github.com/eclipse-theia/theia/pull/7812)

- [plugin] added support for the `workspace` API `onDidCreateFiles` [#7718](https://github.com/eclipse-theia/theia/pull/7718)

- [plugin] added support for the `workspace` API `onDidDeleteFiles` [#7718](https://github.com/eclipse-theia/theia/pull/7718)

- [plugin] added support for the `workspace` API `onDidRenameFiles` [#7718](https://github.com/eclipse-theia/theia/pull/7718)

- [plugin] added support for the `workspace` API `onWillCreateFiles` [#7718](https://github.com/eclipse-theia/theia/pull/7718)

- [plugin] added support for the `workspace` API `onWillDeleteFiles` [#7718](https://github.com/eclipse-theia/theia/pull/7718)

- [plugin] added support for the `workspace` API `onWillRenameFiles` [#7718](https://github.com/eclipse-theia/theia/pull/7718)

- [plugin] added support for the command `terminal.kill` [#7906](https://github.com/eclipse-theia/theia/pull/7906)

- [plugin] added support for the command `terminalSendSequence` [#7906](https://github.com/eclipse-theia/theia/pull/7906)

- [plugin] added support for when-closures for the quick-view palette [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [plugin] fixed `registerCommand` API incompatibilities [#7296](https://github.com/eclipse-theia/theia/pull/7296)

- [plugin] fixed issue where contributed views had blank square icons on reload [#7756](https://github.com/eclipse-theia/theia/pull/7756)

- [plugin] fixed leaking filesystem resource [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [plugin] fixed potential activation deadlock [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [plugin] fixed synching of visible and active editors [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [plugin] fixed the computing of external icon urls [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [plugin] fixed the tree-view reveal [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [plugin] fixed the update of quick-pick items [#6921](https://github.com/eclipse-theia/theia/pull/6921)

- [plugin] updated handling of plugin folder paths [#7799](https://github.com/eclipse-theia/theia/pull/7799)

- [plugin] updated handling to not require non-existing plugin main [#7852](https://github.com/eclipse-theia/theia/pull/7852)

- [preferences] improved the `preferences` widget user-interface [#7105](https://github.com/eclipse-theia/theia/pull/7105)

- [scm] added `scm.defaultViewMode` preference to control the display of the `scm` widget [#7717](https://github.com/eclipse-theia/theia/pull/7717)

- [scm] added handling to refresh widget on activation [#7880](https://github.com/eclipse-theia/theia/pull/7880)

- [scm] added support for displaying the `scm` view as a tree [#7505](https://github.com/eclipse-theia/theia/pull/7505)

- [scm] fixed missing commit and amend functionality when opening a new workspace [#7769](https://github.com/eclipse-theia/theia/pull/7769)

- [scm] fixed restoring last commit message [#7818](https://github.com/eclipse-theia/theia/pull/7818)

- [task] added support for user-level task configurations [#7620](https://github.com/eclipse-theia/theia/pull/7620)

- [task] fixed task execution on macOS with `zsh` [#7889](https://github.com/eclipse-theia/theia/pull/7889)

- [task] improved order of task configurations [#7696](https://github.com/eclipse-theia/theia/pull/7696)

- [task] updated the when-closure when executing `Run Last Task` [#7890](https://github.com/eclipse-theia/theia/pull/7890)

- [terminal] added handling to detach the `TerminalSearchWidget` before disposing the `TerminalWidget` [#7882](https://github.com/eclipse-theia/theia/pull/7882)

- [workspace] added the `workspaceState` when-closure context [#7846](https://github.com/eclipse-theia/theia/pull/7846)