Merge branch 'dev' into 'master'

Implement first versions of file browser, text viewer and image viewer

See merge request bohacfr2/apo-sem!1

fix: always show selected item on zooming

feat: add better navigation

fix: browser window bugs

fix: list container scroll

feat: add more columns to render

feat: add file executing and folder browsing

feat: implement basic directory browser window

feat: add list container selected index, padding and colors

feat: add list container logic