Content (#7)

* optional children in List component

* added real content to trace page

* added real content to cov page

* add support for json highlighting

* real content on compiler page

* real content on profiler page

* remove unused import

* remove list from compiler page

* wrap code components in pages with breakout component

* fix font size on text

* fix typo

packages/dev-tools-pages/ts/highlight.tsx

@@ -1,6 +1,8 @@
 const highlight = require('highlight.js/lib/highlight');
 const javascript = require('highlight.js/lib/languages/javascript');
+const json = require('highlight.js/lib/languages/json');
 
 highlight.registerLanguage('javascript', javascript);
+highlight.registerLanguage('json', json);
 
 export default highlight;