Callback parameter for TestEditorService() is optional

upgrade telemetry package used by git extension

Remove dependency on window.event in ListView

upgrade telemetry package used by json and html extensions

Typo fix

Hot Exit: Opens the same file twice in two separate windows

Fixes Microsoft/monaco-editor#371.

The `event` property of Window is [nonstandard] and isn't supported by Firefox,
breaking some of ListView's event-handling behavior.

I checked for places where VSCode depends on `window.event` by removing it from
`lib.d.ts` and building from scratch; the references in ListView were the only
ones I found in `src/vs/base/browser`. There are also some references in
non-browser parts of the codebase, but I assume that's fine since they work in
Electron.

[nonstandard]: https://developer.mozilla.org/en-US/docs/Web/API/Window/event

Terminal encoding problem related to issue #14586

correct boundary for embedded languages in HTML

fixes #20752

fixes #20585

Changing the logic to other function since the first one could not be called if no locale passed to create terminal