chore: Reorganize the installation config settings (#8794)

- Reorganizing installation config settings to move more configurations into UI from environment variables
- Changes to installation config to support premium plans in the enterprise edition
- Fixes the broken premium indicator in account/show and accounts/edit page

config/features.yml

@@ -11,6 +11,7 @@
   enabled: false
 - name: disable_branding
   enabled: false
+  premium:  true
 - name: email_continuity_on_api_channel
   enabled: false
 - name: help_center
@@ -55,8 +56,10 @@
   enabled: false
 - name: audit_logs
   enabled: false
+  premium: true
 - name: response_bot
   enabled: false
+  premium: true
 - name: message_reply_to
   enabled: false
 - name: insert_article_in_reply