Tab order in link insertion dialog is all messed up.
Issues:
- The quickest way to get to "Done" is tabbing backwards.
- All the search suggestions are in the tab index. They should instead only be accessible via up/down arrows when the text field has focus, to allow quick tab indexing through the rest of the dialog.
- It's quite difficult to find out how to even reach the "External link" tab. You have to tab backwards a few times, then use arrow keys when the tabs finally get the focus.
- Tab index 13 is conspicuously missing. No idea where the focus goes.