refactor: standardize domain configuration in template files

- Updated the configuration structure in multiple blueprint template files to ensure consistent formatting for 'domains' and 'env' sections.
- Adjusted indentation and alignment for better readability across various templates.

blueprints/doublezero/template.toml

@@ -11,11 +11,11 @@ env = [
   "AWS_SECRET_ACCESS_KEY=your-aws-secret-key",
   "AWS_REGION=your-aws-region",
   "SQS_URL=your-aws-sqs-url",
-  "SYSTEM_EMAIL="
+  "SYSTEM_EMAIL=",
 ]
-mounts = [ ]
+mounts = []
 
-  [[config.domains]]
-  serviceName = "doublezero"
-  port = 4_000
-  host = "${main_domain}"
+[[config.domains]]
+serviceName = "doublezero"
+port = 4_000
+host = "${main_domain}"