QML UI: improve banner in global drawer

The asynchronous load seemed to be (at least one of) the culprit(s) of
the banner occasionally not showing up.
Making the font for the cloud ID smaller looks better (and works much
better for long email addresses).

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

mobile-widgets/qml/main.qml

@@ -112,7 +112,6 @@ Kirigami.ApplicationWindow {
 			Layout.fillWidth: true
 			sourceSize.width: parent.width
 			fillMode: Image.PreserveAspectFit
-			asynchronous: true
 			LinearGradient {
 				anchors {
 					left: parent.left
@@ -166,7 +165,7 @@ Kirigami.ApplicationWindow {
 					Kirigami.Heading {
 						Layout.fillWidth: true
 						visible: text.length > 0
-						level: 1
+						level: 3
 						color: "white"
 						text: prefs.cloudUserName
 						wrapMode: Text.NoWrap