Started implementing user settings -> security -> password management

src/app/storage/indexed-db.ts

@@ -147,7 +147,7 @@ export class IndexedDB {
   delete(storeName: string, key: string): Promise<void> {
     return new Promise((resolve, reject) => {
       if (this.db) {
-        const transaction = this.db.transaction([storeName], "readonly");
+        const transaction = this.db.transaction([storeName], "readwrite");
         const store = transaction.objectStore(storeName);
         const request = store.delete(key);