feat: make copy-executable copy another needed files to mz_apo

refactor: remove todos

refactor: minimize filebrowser main functions

refactor: split filebrowser main to more functions

feat: add pheripherals usage to file browser

feat: add plain text default open

feat: add default options, load options on startup

feat: add support for font family

docs: add new todos

fix: include mzapo sdl only for computer

feat: add file browser main loop