feat: use custom wayland layer-shell to render wallpaper to reduce vram

shell.qml

@@ -3,7 +3,6 @@
 // @ pragma DefaultEnv QSG_RHI_BACKEND=vulkan
 //@ pragma DefaultEnv QSG_NO_VSYNC=1
 //@ pragma DefaultEnv QS_NO_RELOAD_POPUP=1
-//@ pragma DefaultEnv QT_SCALE_FACTOR_ROUNDING_POLICY=Round
 //@ pragma DefaultEnv QT_QUICK_FLICKABLE_WHEEL_DECELERATION=10000
 //@ pragma DropExpensiveFonts
 import Quickshell
@@ -25,9 +24,6 @@ ShellRoot {
 	Drawers {
 	}
 
-	Wallpaper {
-	}
-
 	Lock {
 		id: lock
 	}
@@ -48,4 +44,7 @@ ShellRoot {
 		component: BatteryService {
 		}
 	}
+
+	ServiceLoader {
+	}
 }