Disable Test Delivery and Replay webhook buttons when webhook is inactive (#27211) (#27253)

Backport #27211 by @yardenshoham

These buttons are now disabled when the webhook is not active.

The buttons were always enabled before this change.

- Fixes #26824
- Replaces #26814

# Before


![image](https://github.com/go-gitea/gitea/assets/20454870/e783d0d8-b433-440e-b95f-50d7c42613d3)


![image](https://github.com/go-gitea/gitea/assets/20454870/b4886151-9f32-4e83-8001-dd3f20c23d70)

# After


![image](https://github.com/go-gitea/gitea/assets/20454870/74b76a72-0818-4143-8548-5d42c4119a05)


![image](https://github.com/go-gitea/gitea/assets/20454870/d5ae4e5c-c1ac-4751-a072-e6f7511b1e07)

Signed-off-by: Yarden Shoham <git@yardenshoham.com>
Co-authored-by: Yarden Shoham <git@yardenshoham.com>

options/locale/locale_en-US.ini

@@ -2133,12 +2133,14 @@ settings.webhook_deletion_desc = Removing a webhook deletes its settings and del
 settings.webhook_deletion_success = The webhook has been removed.
 settings.webhook.test_delivery = Test Delivery
 settings.webhook.test_delivery_desc = Test this webhook with a fake event.
+settings.webhook.test_delivery_desc_disabled = To test this webhook with a fake event, activate it.
 settings.webhook.request = Request
 settings.webhook.response = Response
 settings.webhook.headers = Headers
 settings.webhook.payload = Content
 settings.webhook.body = Body
 settings.webhook.replay.description = Replay this webhook.
+settings.webhook.replay.description_disabled = To replay this webhook, activate it.
 settings.webhook.delivery.success = An event has been added to the delivery queue. It may take few seconds before it shows up in the delivery history.
 settings.githooks_desc = "Git Hooks are powered by Git itself. You can edit hook files below to set up custom operations."
 settings.githook_edit_desc = If the hook is inactive, sample content will be presented. Leaving content to an empty value will disable this hook.