It's now possible to change webhook-type in create-view.
before:

after:

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Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Giteabot <teabot@gitea.io>
I noticed that the code of several new webhook pages is highly
repetitive, so I pulled out the common parts to a new template, unified
reference, unified maintenance
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Co-authored-by: KN4CK3R <admin@oldschoolhack.me>