Try to avoid using as much state.

The body of these specific events are always non-null

Fixes #62978

Fixes #63181

This is a replacement for the `_typescript.configurePlugin` command. Using a command, it is easy to forget to check if the js-ts extension is active before executing it. Using an actual api prevents this  and also allows better typing

fixes #63436

Fixes #63448

**Bug**
go to definition and go to declaration both were registered with the `editor.action.goToRealDeclaration`  command id.

**Fix**
Use temporary new command id to avoid this. We should change the id to something better.

fixes #63369

remove centered layout from layout menu