feat: edit API keys (name, rights); quick dump text above its buttons; inline note badges

- PATCH /keys/{id} renames a key or changes its scopes; the secret stays. Settings → API gets an
  edit button per key with the same switches as for a new key.
- Quick dump: a multiline text gets the full width, the buttons move to their own row below; the
  bar only goes back to one line once the text is clearly shorter (no flip-flopping).
- Notes: the "Erweitert"/"Unteraufgabe" badges sit right after the checkbox text.

v0.38.0.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "mindsift-frontend",
-  "version": "0.37.2",
+  "version": "0.38.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mindsift-frontend",
-      "version": "0.37.2",
+      "version": "0.38.0",
       "license": "Unlicense",
       "dependencies": {
         "@fontsource-variable/inter": "5.3.0",