feat: add text viewer better keyboard controls

fix: add correct error if file cannot be executed

refactor: split local file access

refactor: split imageviewer to more functions and files

refactor: split textviewer to more functions and files

refactor: minimize filebrowser main functions

fix: incorrect table item offset

refactor: split filebrowser main to more functions

feat: add controls text file open

fix: dialog overflow

fix: always show selected item on zooming

fix: set rgb leds to lower brightness

refactor: split browser window

fix: log not enough arguments as error

feat: add image viewer mode indicator

feat: add pheripherals usage to file browser

fix: execute program without argument

feat: add better navigation

fix: avoid uninitialized values when stat fails

fix: dialog fill unused space