Improvement suggestions #21

1. Update wording

Update to:
`You can find your environment ID in your Formbricks account under "Configuration > Website & App Connection"

There is a full stop missing at the end of this sentence

Change to "Test request successful! Don't forget to Save Changes ⬆️ and to enable Formbricks ⬇️

2. Prefill API host with https://app.formbricks.com