Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Clarify the title of the "Video Stream" panel (instead of just "Video")

On large/high DPI screens, the whole UI scales nicely when increasing the
font size, except for the attitude widget, that was limited to 200 pixels.

For whatever reason, showing the dialog through a function causes a crash in QML (undebugable--new word!)

Internet available now has a signal

Also rename QmlPageInfo to QmlComponentInfo to cover more use cases

Used to display items associated with Flight Plan on Map

Remove/comment off debug output pollution

Plus other ui tweaks

- Added menu options to select new mode as well as new settings and defaults