Fixes long strings for both labels (e.g. from locale/ro.txt) and long
key combos (e.g. CTRL+ALT+SHIFT+PGUP with German keyboard layout)
Also both Push-to-Talk hotkeys can now be reset separately
This moves all hotkeys that were accessible in the audio/publish
settings panes to a new hotkeys settings pane
Also makes the push to talk hotkeys behave like all other (settings)
hotkeys, i.e. as long as a hotkey is configured the hotkey is active