feat: move Azure config to installation_config (#9481)

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

app/services/microsoft/refresh_oauth_token_service.rb

@@ -50,7 +50,7 @@ class Microsoft::RefreshOauthTokenService
 
   # Builds the OAuth strategy for Microsoft Graph
   def build_oauth_strategy
-    ::MicrosoftGraphAuth.new(nil, ENV.fetch('AZURE_APP_ID'), ENV.fetch('AZURE_APP_SECRET'))
+    ::MicrosoftGraphAuth.new(nil, GlobalConfigService.load('AZURE_APP_ID', ''), GlobalConfigService.load('AZURE_APP_SECRET', ''))
   end
 
   # Builds the token service using OAuth2