Add ability to create sql snippets on selfhosted instance

Bug report


Describe the bug

There's no getting started or new query button to create a new sql snippet.


To Reproduce


Steps to reproduce the behavior, please provide code snippets or a repository:

1. Selfhost supabase
2. Open on SQL Editor
3. There's no new query button

Expected behavior


Expected to see new query button as well as get started to quickly create snippets
Screenshots


Example (first image is supabase cloud, second is selfhosted using docker):
![image](
![image](

System information


• OS: Debian 11.6
• Browser Edge
• Selfhosted via docker
• Studio version: 20230228-029c7bd