style: correct coding style with rubocop linter

config/initializers/stripe.rb

@@ -1,10 +1,10 @@
 Rails.application.configure do
   # Load environment variables from .env file if dotenv is not available
-  env_file = Rails.root.join('.env')
+  env_file = Rails.root.join(".env")
   if File.exist?(env_file) && !defined?(Dotenv)
     File.readlines(env_file).each do |line|
-      next if line.strip.empty? || line.start_with?('#')
-      key, value = line.split('=', 2)
+      next if line.strip.empty? || line.start_with?("#")
+      key, value = line.split("=", 2)
       ENV[key.strip] = value.strip if key && value
     end
   end
@@ -37,4 +37,4 @@ Rails.application.configure do
   else
     Rails.logger.warn "Stripe secret key not found - Stripe will not be initialized"
   end
-end
+end