🔧 Update project ID in Supabase config for flexible integration

* Change the project_id from "backend" to "webapp-template-backend" in config.toml to accommodate multiple use cases

apps/backend/supabase/config.toml

@@ -1,6 +1,6 @@
 # A string used to distinguish different Supabase projects on the same host. Defaults to the
 # working directory name when running `supabase init`.
-project_id = "backend"
+project_id = "webapp-template-backend"
 
 [api]
 enabled = true