title: VS Code - Can't associate .ts file with TypeScript
body: <p>When I create a .ts file in a project, VS Code interprets it as "plain text". When I try to "Configure File Association for .ts", there are a few dozen languages to choose from but TypeScript is not one of them. Adding the following in settings.json doesn't seem to do anything:</p>
  
  <p><code>"files.associations": { ".ts": "typescript" }</code></p>
  
  <p>I have disabled extensions and commented out everything else in settings.json. I must be missing something obvious.</p>
  
  <p>Note: fixed the issue by completely uninstalling and reinstalling VS Code.</p>