ircfspace/teleMirror — reverse-engineered prompt

Build me a simple desktop app called teleMirror for reading public Telegram channels when Telegram is blocked or unreliable. I want users to open the app without needing the Telegram app or an account, enter or choose a channel, and read posts in a clean feed with text, media previews, post views, and cached loading so it feels fast.

It should try more than one way to fetch content, including direct Telegram access when possible, a backup JSON source from GitHub, and proxy style bypass methods like Google Translate for filtered networks. If one source fails, the app should quietly try another and show a useful error only when nothing works.

Please make the interface modern and easy to read, with Persian and English language switching. It should work as a desktop client for Windows, Linux, and macOS. Keep the code organized so the fetching logic, caching, language text, and UI are easy to update later. Look up current docs online if you need to.