feat(ui:profile): permit change of username, givenname, familyname

usernam: can be set once, after Nextcloud gateway depends on it

static/sw.js

@@ -1,6 +1,6 @@
 // OxiCloud Service Worker
 // FIXME: generate cache name according build ?
-const CACHE_NAME = 'oxicloud-cache-v24';
+const CACHE_NAME = 'oxicloud-cache-v25';
 
 // Only cache static assets — NOT HTML files.
 // HTML files are served network-first so browsers always get the latest