Minor improvements

Replaced which with command -v since which is already deprecated
Replaced lsb_release -d with cat /etc/os-release since this method is more universal
Fixed a couple of typos in the PortProton installation script

added a check for the existence of a symbolic link

If a person runs a PortProton installation when it is already installed e.g. if he installed PortProton manually and decided to switch to the package, the first installation will break because of the existence of a symbolic link and consequently PortPrototon will not run

Update script lang - №2

Заменил упоминание PortProton на переменную $portname
Привёл английскую локализацию к тому же виду что и русскую
Дополнил общую локализацию

Add description for all vkBasalt effects

Исправленно: При попытке поменять язык, не показывает диалог.

fix: Changing language will trigger correct  select dialog. Also fixed first start of the app with choosing language at first.