Add webhook name field to improve webhook identification (#37025) (#37040)

Add an optional Name field to webhooks so users can give them
human-readable labels instead of relying only on URLs. The webhook
overview page now displays names when available, or falls back to the
URL for unnamed webhooks.

Fixes #37025

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Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

templates/repo/settings/webhook/base_list.tmpl

@@ -14,7 +14,8 @@
 			<div class="item">
 				<span class="{{if eq .LastStatus 1}}tw-text-green{{else if eq .LastStatus 2}}tw-text-red{{else}}tw-text-text-light{{end}}">{{svg "octicon-dot-fill" 22}}</span>
 				<div class="gt-ellipsis tw-flex-1">
-					<a title="{{.URL}}" href="{{$.BaseLink}}/{{.ID}}">{{.URL}}</a>
+					<a title="{{.URL}}" href="{{$.BaseLink}}/{{.ID}}">{{or .Name (ctx.Locale.Tr "repo.settings.webhook.name_empty")}}</a>
+					<span class="tw-ml-2 tw-text-grey-light">{{.URL}}</span>
 				</div>
 				<a class="muted tw-p-2" href="{{$.BaseLink}}/{{.ID}}">{{svg "octicon-pencil"}}</a>
 				<a class="tw-text-red tw-p-2 link-action"