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

app/helpers/super_admin/account_features_helper.rb

@@ -0,0 +1,9 @@
+module SuperAdmin::AccountFeaturesHelper
+  def self.account_features
+    YAML.safe_load(Rails.root.join('config/features.yml').read).freeze
+  end
+
+  def self.account_premium_features
+    account_features.filter { |feature| feature['premium'] }.pluck('name')
+  end
+end