[VSCode] If user tries to access C# features before Razor extension is loaded, C# features won't work until edit is made to file or file is reopened

[allisonchou]

This seems to be a pre-existing bug (i.e. present before feature branch). As the title implies, if a user tries to access C# features (e.g. find-all-refs, hover, etc.) before the Razor extension is fully loaded, C# features will cease to work until an edit is made to the file, or the file is re-opened.