Datei Upload und Download fix

frontend/sw.js

@@ -4,7 +4,7 @@
  * Offline support and caching
  */
 
-const CACHE_VERSION = '297';
+const CACHE_VERSION = '300';
 const CACHE_NAME = 'taskmate-v' + CACHE_VERSION;
 const STATIC_CACHE_NAME = 'taskmate-static-v' + CACHE_VERSION;
 const DYNAMIC_CACHE_NAME = 'taskmate-dynamic-v' + CACHE_VERSION;