Revert "install: declare package list as a readonly array"

This reverts commit 8ea09e2ffedbad04e4e606fba9509ffc42dba39f.
install: remove unused packages and services
inputrc: enable Vi-mode
zshrc: add pacman alias
install: fix typo
install: fix typo
Replace zsh with bash
Merge branch 'bash'
Remove zprofile
Refactor directory structure