Porting to Qt6.
Add SkBarcode support.
player: Add basic keyboard support.
android: Update to a flat icon.
Create ModelBackendsFiltered.
ControllerCore: Add the 'vbml' loader.
ControllerCore: Add the 'openImage' function.
ControllerCore: Add the 'checkTag' function.
ControllerCore: Update the SKNOTORRENT implementation.
Create ItemButtons.
Create BaseView, ViewCamera, ViewTag.
Create PageCamera, PageTag.
Rename ListBackends to PanelBackends.
Rename LabelStream to LabelTime.
Make sure we set the current playlist instantly.
Update margins implementation.
Gui: Update the 'saveTrackData' implementation.
Gui: Update the 'pClose' function.
Gui: Update the 'onActiveChanged' event.
Gui: Update the 'mouse' events.
AreaContextualApplication: Update the 'Feed' components.
PanelBackends: Remove the 'itemOpacity' property.
PanelBackends: Update the 'listBackends' flick events.
PanelSettings: Update the 'titles' property.
CompBackend: Add the 'buttonText' support.
PageVideo: Add video and audio tracks support.
PageVideo: Update 'style' button behavior.