Add Nitterium/Twitter alternative frontends

Nitterium

• Nitterium(https://github.com/kaleedtc/Nitterium) - A privacy-focused Android app and wrapper for Nitter, allowing you to browse Twitter/X content without an account and subscribe to your favorite user profiles..
• License: MIT License
• Why do you think this helps users privacy?: Browse Nitter, a Twitter frontend on Android devices
• Under what section should this service be listed?: Social Networks and Platforms >> Twitter >> Alternative frontends
• Additional comments / info: Fritter is no longer actively developed and no longer works. Squawker doesn't actually access Nitter but Twitter itself now. Nitterium might be a good privacy choice because it access Nitter instances.