Playwright: Changes needed for enterprise tests (#110424)

* enterprise scaffolding

* clean up gitignore, add enterprise to playwright config

* add workflows

* setup enterprise in the workflows

* update permissions

* try update license path

* add TODO

* undo workflow changes

* remove commands

* add extensions folder

* update gitignore

* include the whole public folder

* add comment

* review comments

e2e-playwright/start-server

@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# Ensure we're in the Grafana root directory
+cd "$(dirname "${BASH_SOURCE[0]}")/.." || exit 1
+
 . scripts/grafana-server/variables
 
 LICENSE_PATH=""