Fixed aborting download bugging out

lib/screen/pages/talk/chatBubble.dart

@@ -205,12 +205,12 @@ class _ChatBubbleState extends State<ChatBubble> {
                 TextButton(onPressed: () {
                   downloadCore?.then((value) {
                     if(!value.isCancelled) value.cancel();
-                    setState(() {
-                      downloadProgress = 0;
-                      downloadCore = null;
-                    });
                     Navigator.of(context).pop();
                   });
+                  setState(() {
+                    downloadProgress = 0;
+                    downloadCore = null;
+                  });
                 }, child: const Text("Ja, Abbrechen"))
               ],
             );