Advance redbear-full Wayland, greeter, and Qt integration

Consolidate the active desktop path around redbear-full while landing the greeter/session stack and the runtime fixes needed to keep Wayland and KWin bring-up moving forward.

local/recipes/kde/kf6-kxmlgui/source/src/CMakeLists.txt

@@ -99,7 +99,7 @@ PUBLIC
 PRIVATE
             #QNetworkAccessManager in kaboutapplicationpersonmodel_p
        #QPrinter in kshortcutseditor
-###    Qt6::CorePrivate    #QSystemLocale in initializeLanguages
+################    Qt6::CorePrivate    #QSystemLocale in initializeLanguages
     KF6::CoreAddons     #KAboutData
     KF6::GuiAddons
     KF6::WidgetsAddons

local/recipes/kde/kf6-kxmlgui/source/src/kswitchlanguagedialog_p.cpp

@@ -75,10 +75,10 @@ void initializeLanguages()
         // Ideally setting the LANGUAGE would change the default QLocale too
         // but unfortunately this is too late since the QCoreApplication constructor
         // already created a QLocale at this stage so we need to set the reset it
-//////        // by triggering the creation and destruction of a QSystemLocale
+////////////////////////////////        // by triggering the creation and destruction of a QSystemLocale
         // this is highly dependent on Qt internals, so may break, but oh well
-//////        QSystemLocale *dummy = new QSystemLocale();
-//////        delete dummy;
+////////////////////////////////        QSystemLocale *dummy = new QSystemLocale();
+////////////////////////////////        delete dummy;
     }
 }