Restore compact mode background

Restore compact mode using the darker/lighter depending on color scheme background (i.e. the same as the bubble background) it broke somewhere in the refactor of roompage

src/qml/Page/RoomPage.qml

@@ -97,6 +97,8 @@ Kirigami.Page {
     }
 
     background: Rectangle {
+        Kirigami.Theme.colorSet: Kirigami.Theme.View
+        Kirigami.Theme.inherit: false
         color: Config.compactLayout ? Kirigami.Theme.backgroundColor : "transparent"
     }