feat: remove doom emacs

feat: add vhdl treesitter grammar packages, put it to emacs

feat: add pdf-tools emacs, open_file_below zshrc function

feat(emacs): use vterm, add functions to communicate with emacs from vterm

feat: use pgtk emacs for wayland

refactor: use outOfStoreSymlink instead of manually linking in home.activation

refactor: modularize the configuration