misc: do not cache AnimatedImage in message delegates

Change-Id: I8448d3eb3b277be60b6223cfe1b3956c9cbc20fd

src/commoncomponents/DataTransferMessageDelegate.qml

@@ -294,7 +294,7 @@ Loader {
                             anchors.right: isOutgoing ? parent.right : undefined
                             property real minSize: 192
                             property real maxSize: 256
-                            cache: true
+                            cache: false
                             fillMode: Image.PreserveAspectCrop
                             mipmap: true
                             antialiasing: true

src/commoncomponents/TextMessageDelegate.qml

@@ -86,7 +86,7 @@ SBSMessageBase {
                 }
                 AnimatedImage {
                     id: img
-                    cache: true
+                    cache: false
                     source: isRemoteImage ?
                                 LinkPreviewInfo.url :
                                 (hasImage ? LinkPreviewInfo.image : "")