Merge counter from https://github.com/xMasterX/all-the-plugins

counter/counter.c

@@ -20,7 +20,7 @@ typedef struct {
     FuriMessageQueue* input_queue;
     ViewPort* view_port;
     Gui* gui;
-    FuriMutex** mutex;
+    FuriMutex* mutex;
     NotificationApp* notifications;
 
     int count;