[panel] Introduce a common panel for all panels, shows a close button for easier closing of the panel.

Notifications screen, application title in covers and LauncherFolderModel, also USB mode selection window.

[statusbar] SIM panel for PIN entry

[env] Add QT_QUICK_CONTROLS_STYLE=Nemo to give the Nemo styles to homescreen

[config] Remove lipstick config from installation, does weird things in Jolla environment.

[statusbar] Wifi panel added for statusbar

[statusbar] Technologies for cellular connections.