Fix trailing newline and RuboCop style in bin/dev-static

- Add missing trailing newline
- Fix string quote style to use double quotes

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: justin808

bin/dev-static

@@ -16,4 +16,4 @@ rescue LoadError
 end
 
 # Force static mode by passing 'static' argument
-ReactOnRails::Dev::ServerManager.run_from_command_line(['static'])
+ReactOnRails::Dev::ServerManager.run_from_command_line(["static"])