vscode.TaskGroup.Test should be Test, not Clean

* Show unsaved file modifications by opening a diff view

* Add changes based on PR feedback
- Context menu item text changed
- Tab title changed
- Keybinding added (Ctrl + K, D)
- Pinning removed

Fixes #28825

Fixes #29006

Fixes #29542

Fixes #30126

* Refactored terminalFindWidget into a SimpleFindWidget and used that to provide find for webviews

* Refactored Webvieweditor into an abstract base and a concrete class to respect 'part' separation

* Cleaned up css and images that I forgot to delete

* Reset i18n.js file

* bind this when passing onThemeChange to themeService.onThemeChange

* Add 'CloseWebViewEditorFind' command to close find when pressing escape

* Ctrl+f now selects text in all SimpleFindWidgets even when buttons are focused. Aligns with full find widget

* Fixed issues when reactivating find

* Register webviewEditor with workbench

* Remove find widget when disposing webview

* Fixed webviewEditor casing in releaseNotesEditor (windows is case insensitive). Removed registration from workbench to see if it was necessary at all. If it fails again, I'll add it back

Brings in a bunch of changes from xterm.js@2.8.0 as well as some extra fixes.

Fixes #30260 (for v1.15)
Fixes #29723

Fixes #30216

Changes the TPromise callback interface as suggested by https://github.com/Microsoft/vscode/issues/30216#issuecomment-313558951 to fix async functions when compiling using ts 2.4+

* fixes #28602

* fix keybinding widget mess

Support reordering of views in split view by drag and drop

Editor.TokenColorCustomizations