Rebase of a number of incremental changes listed below

Move first level dispatchMessage into ForkedTsServerProcess

Goal is to move callbacks and other per-server state into `ForkedTsServerProcess`

Create forked ts server object syncrounously

There is no reason for this to be async anymore. Making this object sync reduces complexity and makes the code easier to reason about

Moving server relate functions into ForkedTSServer object

The goal here is to have a single "server" object that keeps track of all its relevant state. The service client would manage one of these servers at a time, starting new ones if needed and dispatching to old ones

Split server into own file

Use switch case instead of conditionals

Make pendingResponses readonly

Add typings for callback item

Improve naming

- Use more descriptive names
- Preview private vars with _

Use passed in version for getting command line args

Attach webview click handler to window instead of to document body

Fixes #48926

Change error handling for ts server exit and error

- Don't fire twice on error (once for the `once` and once for the `onError`)
- Flush callbacks on both exit and error.

Remove cancellationPipeName as state

Remove obsolete comment

Move all env generation into generatePatchedEnv

Extract server spawn into static method

Move spawn from static to be own factory class

Move providers from arguments to state on the spawner

Update js/ts grammar

Remove duplicate error handler

Cleaning up server fork

- Standarize names
- Extract methods
- Move some function to be private statics
- Move logging out of electron and into server.ts

Use undefined instead of null for optional value

Introduce --force arg to install extension without prompts

Center viewport for nextChange/previousChange using keybinding

* Test #57299 - script to stage test data.

* Fix #57299 - improve git rebase detection

* Revert "Test #57299 - script to stage test data."

This reverts commit 5f7142c25ace61962de8e6d96cc3a9de44fee779.

#57373 Replace brackets as well upon creating a branch