bug: bubblezone filters out CBT CSI sequences

[srlehn]

🌧 Describe the problem

The "CSI Pn Z" sequence that is used for marking in this project is an already defined ANSI CSI sequence (CBT). If the input already contains CBT sequences prior to marking, those would be filtered out.

⛅ Expected behavior

CSI sequences have a private subset for use cases like here.

🔄 Minimal reproduction

No response

💠 Version: bubblezone

?

🖥 Version: Operating system

linux/debian

⚙ Additional context

No response

🤝 Requirements

• [X] I believe the problem I'm facing is a bug, and is not intended behavior. Post here if you're not sure.
• [X] I have confirmed that someone else has not submitted a similar bug report.