title: Is there a way to change the language detection per project?
body: <p>I using Visual Studio Code to work on multiple projects (and <em>languages</em>). Some projects are based on Django, others are on React (JS).</p>
  <p>Is there a way to set up Visual Studio Code associate specific file extensions with a given language on a per project basis?</p>
  <p>Typically, I want to associate .html files with 'Django templates' and .js files with 'Javascript' when working on project A.
  reciprocally, I want to associate .html files with 'HTML' and .js files with 'Javascript React' when working on project B.</p>