Fixes #102979

Fixes #86658

Rewrites a few of the remaining calls to `SyncActionDescriptor.create` to use the new `SyncActionDescriptor.from` helper

* Add SyncActionDescriptor.from

There are a whole lot of places in our code where have the following pattern:

```
actionRegistry.registerWorkbenchAction(SyncActionDescriptor.create(CreateNewLocalTerminalAction, CreateNewLocalTerminalAction.ID, CreateNewLocalTerminalAction.LABEL));
```

Notice how the class name has to be repeated  three times.

This change introduces a helper function `SyncActionDescriptor.from` that lets you instead just pass in the class:

```js
actionRegistry.registerWorkbenchAction(SyncActionDescriptor.create(CreateNewLocalTerminalAction));
```

* Avoid cast

Update recommendations for C#.

The C# extension moved to a new publisher ID and the recommendations
need updating.

- do not recommed exe and dynamic workspace recommendations in web