qt/qml: Add 'Audio Player' toolbar and update presets

This MR adds a new profile for audio in the 'Customize interface' panel.

There's now a distinction between:

• The Video Player
• The Audio Player
• The Mini Player (the minified toolbar when browsing the MediaLibrary)

This MR introduces a generic NavigationWidget that encapsulate the DVD and Teletext components.

It specifies the proper 'Video' and 'Audio' presets:

The Menu and Back buttons are removed.

NOTE: !1692 (merged) should be merged first.

NOTE: The following wiki details the different presets: https://code.videolan.org/bunjee/vlc/-/wikis/presets