This PR has the following changes
1. Add `AZURE_APP_ID` and `AZURE_APP_SECRET` to installation config
2. Add Microsoft config to `super_admin/features.yml`
3. Replace usage of `ENV.fetch` with `GlobalConfigService.load` for
fetch App ID and Secret
- 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
