Quickfix graphics

Fix : invisible window when receiving call

• Process GUI events before accepting a call in order to be synchronized with Call objects
• Revert window variable naming
• Change open window order when receive call

Fix : Show Notifications while in fullscreen Fix : show settings in fullscreen

QuickFix:

• Set Minimum Width on Tooltips
• Show full path on log folder selection
• Add Conference participant filter to show only users that are in conference
• Add test on Player to avoid crash if it cannot be instanciated before
• Window position when opening in fullscreen