* rofi moved to libera.chat
* unify some theme headers and whitespace
* consistently use the same hashbang for bash
* improve obsolete way of testing equality
see https://github.com/koalaman/shellcheck/wiki/SC2268 for explanation
* use consistent function definitions in bash scripts
* remove duplicated author and fix whitespace
* quote all variables in scripts
fixes many warnings identified through shellcheck
* fix whitespace in scripts
* fix whitespace in non-source files
* fix spelling in non-source files
* fix whitespace and indentation in source files
* fix spelling in source files
