1824149 - Add script override could show some visual feedback once the file is saved locally

Status: NEW

(DevTools :: Debugger, enhancement)

Description

[Nicolas Chevobbe [:nchevobbe]]

When you override a file from the debugger source tree and save the file, there's no feedback at all.
It might be useful for the user to know that the override was successful and that it will apply on the next reload
Maybe we could use the toolbox NotificationBar for that
We could also change the icon of the file we overrode to resemble the "overriden" one (so maybe just having an additional circle, where only the outline would be purple)