Fix haml-lint `InstanceVariables` rule for admin/webhooks/_form (#26062)

.haml-lint_todo.yml

@@ -1,13 +1,13 @@
 # This configuration was generated by
 # `haml-lint --auto-gen-config`
-# on 2023-08-28 13:08:37 -0400 using Haml-Lint version 0.50.0.
+# on 2023-09-28 10:03:39 -0400 using Haml-Lint version 0.50.0.
 # The point is for the user to remove these configuration records
 # one by one as the lints are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of Haml-Lint, may require this file to be generated again.
 
 linters:
-  # Offense count: 945
+  # Offense count: 946
   LineLength:
     enabled: false
 
@@ -15,7 +15,7 @@ linters:
   UnnecessaryStringOutput:
     enabled: false
 
-  # Offense count: 57
+  # Offense count: 59
   RuboCop:
     enabled: false
 
@@ -26,12 +26,11 @@ linters:
       - 'app/views/admin/reports/show.html.haml'
       - 'app/views/disputes/strikes/show.html.haml'
 
-  # Offense count: 28
+  # Offense count: 25
   InstanceVariables:
     exclude:
       - 'app/views/admin/reports/_actions.html.haml'
       - 'app/views/admin/roles/_form.html.haml'
-      - 'app/views/admin/webhooks/_form.html.haml'
       - 'app/views/auth/registrations/_status.html.haml'
       - 'app/views/auth/sessions/two_factor/_otp_authentication_form.html.haml'
       - 'app/views/relationships/_account.html.haml'

app/views/admin/webhooks/_form.html.haml

@@ -1,14 +1,10 @@
-= simple_form_for @webhook, url: @webhook.new_record? ? admin_webhooks_path : admin_webhook_path(@webhook) do |f|
-  = render 'shared/error_messages', object: @webhook
+= render 'shared/error_messages', object: form.object
 
 .fields-group
-    = f.input :url, wrapper: :with_block_label, input_html: { placeholder: 'https://' }
+  = form.input :url, wrapper: :with_block_label, input_html: { placeholder: 'https://' }
 
 .fields-group
-    = f.input :events, collection: Webhook::EVENTS, wrapper: :with_block_label, include_blank: false, as: :check_boxes, collection_wrapper_tag: 'ul', item_wrapper_tag: 'li', disabled: Webhook::EVENTS.filter { |event| !current_user.role.can?(Webhook.permission_for_event(event)) }
+  = form.input :events, collection: Webhook::EVENTS, wrapper: :with_block_label, include_blank: false, as: :check_boxes, collection_wrapper_tag: 'ul', item_wrapper_tag: 'li', disabled: Webhook::EVENTS.filter { |event| !current_user.role.can?(Webhook.permission_for_event(event)) }
 
 .fields-group
-    = f.input :template, wrapper: :with_block_label, input_html: { placeholder: '{ "content": "Hello {{object.username}}" }' }
-
-  .actions
-    = f.button :button, @webhook.new_record? ? t('admin.webhooks.add_new') : t('generic.save_changes'), type: :submit
+  = form.input :template, wrapper: :with_block_label, input_html: { placeholder: '{ "content": "Hello {{object.username}}" }' }

app/views/admin/webhooks/edit.html.haml

@@ -1,4 +1,7 @@
 - content_for :page_title do
   = t('admin.webhooks.edit')
 
-= render partial: 'form'
+= simple_form_for @webhook, url: admin_webhook_path(@webhook) do |form|
+  = render partial: 'form', object: form
+  .actions
+    = form.button :button, t('generic.save_changes'), type: :submit

app/views/admin/webhooks/new.html.haml

@@ -1,4 +1,7 @@
 - content_for :page_title do
   = t('admin.webhooks.new')
 
-= render partial: 'form'
+= simple_form_for @webhook, url: admin_webhooks_path do |form|
+  = render partial: 'form', object: form
+  .actions
+    = form.button :button, t('admin.webhooks.add_new'), type: :submit