Add env support

Signed-off-by: euberdeveloper <euberdeveloper@gmail.com>

Add min-height to main app

Adds min-height: 80vh; The footer will stay always at the bottom on big screens and looks normal on mobile devices.

update pyicu  to fix build on macos

Right now brew installs icu4c 69.x which pyicu only supports from 2.7

Add downArrow to select language + fix select language problem with small screens

Logo, move LibreTranslate org

Set selected attributes

Features + fix bugs (frontend)