Fixes #61912: Account for the fact that modes can be instantiated before all extension points have been handled.

We compile using the alwaysStrict flag so these directives are not needed

This part removes most `use strict` directives that are right after the file header

In order to be able to inject grammar to all language without having to enumerate all of them.

With this, we could use
```json
"grammars": [
     {
     "injectTo": ["source", "text"....]
// ....
}
     ]
```
instead of :
```json
"grammars": [
     {
     "injectTo": ["source.js", "source.ts", "source.jsx", "source.yaml", ....]
// ....
}
     ]
```

* Support quickSuggestions in JSDoc Types

Fixes #43715

Requires vscode-textmate 3.3.1 before merging

* Pick up new vscode textmate version

There are many places in the code that do `import Event, { ...} from '.../event'`.

Fixes #34316

Enables contributed injection grammars to specify an embedded language for their injection targets:

```json
"grammars": [
  {
	"scopeName": "meta.embedded.css",
	"path": "./syntaxes/injection.json",
	"injectTo": [
	  "source.js",
	  "source.jsx",
	  "source.ts",
	  "source.tsx"
	],
	"embeddedLanguages": {
	  "meta.embedded.css": "css"
	}
  }
]
```

From: https://github.com/Microsoft/TypeScript/issues/15352

TS 2.3.1 introduced a breaking change by [switching to covariant types for callbacks](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#covariance-in-callback-parameters). This change tries to fix these compiler errors in the workbench codebase