Add more formatting options (Remove new lines, Format code)

Looks like UserJot doesn't allow new lines anymore, here's the text I entered: Thank you very much for the amazing app! It's the best Clipboard manager ever. Only issue is I'm missing a lot of formatting options in the app that I think would be very useful. For example we really need this function to remove white spaces and unnecessary line breaks when we copy from the terminal (from Claude Code & Codex CLI). Also we need these: Format code (JS, C#, YAML, JSON). Make terminal commands correct (like https://trimmy.app does). I can send a PR for these if you don't mind. Please let me know 🙏🏻