Update shortix_install.sh

Added gui popups!

Update shortix.sh

Added a new line to replace semicolons in game names to prevent misunderstandings by the script, which uses semicolons as column separator.

Update README.md

Added new size option and some manual stuff

Update shortix_install.sh

Fixed the add-game-id feature by adding a line which removes the .id file if "no" was chosen

Merge pull request #3 from SilentException/few-improvements

Update shortix.service

Fixed service not working (don't know why this was missed by me, sorry!)

Update shortix.service

Updated for other systems than Steam Deck by using $HOME variable and also changed the restart interval to 30 minutes

Update README.md