update: make main the release branch and restrict access to push directly to it

Author: ItsMateo

.github/workflows/publish.yml

@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
   push:
     branches:
-      - release
+      - main
 
 permissions: write-all
 
@@ -40,4 +40,4 @@ jobs:
       - package
     steps:
       - name: Publish web app
-        uses: actions/deploy-pages@v4
+        uses: actions/deploy-pages@v4