Colorize icon with Qt5Compat.GraphicalEffects instead MultiEffect fro…

…m Qt6

At the moment, MultiEffect has limitations in its operation.
It does not work with black images. Therefore, the most logical solution would be to use the features from Qt5

src/QmlControls/QGCColoredImage.qml

@@ -1,6 +1,6 @@
 import QtQuick
 import QtQuick.Controls
-import QtQuick.Effects
+import Qt5Compat.GraphicalEffects
 
 import QGroundControl.Palette
 
@@ -35,10 +35,9 @@ Item {
         sourceSize.height:  height
     }
 
-    MultiEffect {
-        source: image
-        anchors.fill: image
-        colorizationColor: parent.color
-        colorization: 1.0
+    ColorOverlay {
+        anchors.fill:       image
+        source:             image
+        color:              parent.color
     }
 }