When developing locally Studio configuration assumes API is running on port configured in API section

[Paul-HeathCo]

When running in dev container (code spaces) endpoints get forwarded. So API endopoint of http://127.0.0.1:54321 becomes https://codespace123-54321.app.github.dev (running on port 443). There is no way to configure this in .toml file because studio setup code here assumes API endpoint is running at port 54321 (as configured in API section).

Proposed fix is to allow to specify port explicitly like sample below:

[studio]
enabled = true
# Port to use for Supabase Studio.
port = 54323
# External URL of the API server that frontend connects to.
api_url = "https://codespace123-54321.app.github.dev:443"