Titlebar does not resize responsively enough when resized horizonally

[codebytere]

When Fiddle's BrowserWindow width is shrunk past a certain point, items on the far right are cut off completely with no way to scroll to them:

We should either:

1. Allow users to scroll to the cut-off items somehow
2. Leverage media queries to restructure the title bar when it gets small enough

[codewithmanas]

Is the issue still there? I want to work on this.

[erickzhao]

@codewithmanas PRs are always welcome unless stated otherwise!