Accounce terminal number every time the terminal is focused.

Fixes #52304

Fixes #60907

Using an overload makes the code more complex and prevents  patterns such as `.then(coalesce)` or `.map(coalesce)`. It also makes it clear which code paths are actually being most used in our code

#60656

#60656

#60565

Rewording / copy change

This reverts commit dbdbbe52.

Fixes #60806

Part of #60565

also use $mid as version id and only accept external and fsPath from the most recent version, #60163

* Pass focus info to actionitem to enable tabindex

* Refactor

* Small refactor

* Allow globalState to be synchronized across multiple windows (fixes #55834)

* address some feedback