Switch most remaining extensions to use esbuild

Just 3 left:

- git and github. These are doing weird stuff with d.ts imports and const enums

- github-authentication  which has some tricky path mapping stuff

extensions/vscode-test-resolver/.vscodeignore

@@ -4,3 +4,4 @@ typings/**
 **/*.map
 .gitignore
 tsconfig*.json
+esbuild*.mts