[REQUEST] Improve webhook model UX

[Ayaan2907]

Issues & Solutions

1. Issue: Webhook is configured, but dropdown allows selecting other providers without effect.
   Solution: Disable dropdown when a webhook is active.

2. Issue: Signing secret and tokens are handled as normal text.
   Solution: Store securely using the environment store (like other API keys).

3. Enhancement: Add icons in the dropdown for better UI.

4. Issue: "Require authentication" checkbox in generic webhook is clickable only on the checkbox.
   Solution: Make both the title and checkbox clickable.

[waleedlatif1]

@Ayaan2907 how's this going?

[Ayaan2907]

@waleedlatif1 it is in progress. Created useWebhookState hook to abstract functionality of getting and setting webhook state. Ill push my commits shortly.
sorry for the late response.