chore: connect frontend and backend versioning

Author: openscript

.changeset/config.json

@@ -2,7 +2,12 @@
   "$schema": "https://unpkg.com/@changesets/config@3.0.3/schema.json",
   "changelog": "@changesets/cli/changelog",
   "commit": false,
-  "fixed": [],
+  "fixed": [
+    [
+      "@quassel/frontend",
+      "@quassel/backend"
+    ]
+  ],
   "linked": [
     [
       "@quassel/frontend",