title: How to work with big multiline strings in JSON with vscode?
body: <p>I have a big json that has a lot of keys and a lot of values are long multiline string. Here is a sample simplified json:</p>
  
  <pre><code>{
      "key" : "line1\nline2\nline3"
  }
  </code></pre>
  
  <p>I would like to use vscode to work with such json-s. </p>
  
  <p>It is a huge pain to work with multiline string in json, I would like to edit the line <code>line1\nline2\nline3</code> as a text:</p>
  
  <pre><code>line1
  line2
  line3
  </code></pre>
  
  <p>I've search vscode marketpalce but I haven't found any extension that solves this issue.</p>