Fix label for pointing to a name instead of id in webhook settings (#29209)

Here's the spec for the `for` attribute:
https://html.spec.whatwg.org/multipage/forms.html#attr-label-for

Signed-off-by: Yarden Shoham <[email protected]>

Author: yardenshoham

templates/repo/settings/webhook/settings.tmpl

@@ -254,7 +254,7 @@
 <!-- Branch filter -->
 <div class="field">
 	<label for="branch_filter">{{ctx.Locale.Tr "repo.settings.branch_filter"}}</label>
-	<input name="branch_filter" type="text" value="{{or .Webhook.BranchFilter "*"}}">
+	<input id="branch_filter" name="branch_filter" type="text" value="{{or .Webhook.BranchFilter "*"}}">
 	<span class="help">{{ctx.Locale.Tr "repo.settings.branch_filter_desc" | Str2html}}</span>
 </div>