FEATURE: mandatory fields for group site setting (#26612)

Automatically add `moderators` and `admins` auto groups to specific site settings.

In the new group-based permissions systems, we just want to check the user’s groups since it more accurately reflects reality

Affected settings:
- tag_topic_allowed_groups
- create_tag_allowed_groups
- send_email_messages_allowed_groups
- personal_message_enabled_groups
- here_mention_allowed_groups
- approve_unless_allowed_groups
- approve_new_topics_unless_allowed_groups
- skip_review_media_groups
- email_in_allowed_groups
- create_topic_allowed_groups
- edit_wiki_post_allowed_groups
- edit_post_allowed_groups
- self_wiki_allowed_groups
- flag_post_allowed_groups
- post_links_allowed_groups
- embedded_media_post_allowed_groups
- profile_background_allowed_groups
- user_card_background_allowed_groups
- invite_allowed_groups
- ignore_allowed_groups
- user_api_key_allowed_groups

app/assets/javascripts/admin/addon/components/site-settings/group-list.hbs

@@ -2,6 +2,7 @@
   @value={{this.settingValue}}
   @choices={{this.groupChoices}}
   @settingName="name"
+  @mandatoryValues={{this.setting.mandatory_values}}
   @nameProperty={{this.nameProperty}}
   @valueProperty={{this.valueProperty}}
   @onChange={{this.onChangeGroupListSetting}}