refactor: remove restic timers, add scripts/configs, update docs

- resticprofile: remove all schedules (manual backups via backup-menu)
- resticprofile: fix hardcoded /home/ada paths → ~/
- proj(): find git repos by .git presence up to depth 4
- bootstrap.sh: add fzf, fd, bat, ripgrep, kitty, htop to packages
- README.md: rewrite for chezmoi (remove stow references)
- add: htoprc, betterbird_up.sh, kitty_up.sh, tg_up.sh

bootstrap.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-PACKAGES=("zsh" "tmux" "alacritty" "chezmoi" "age" "eza" "zoxide")
+PACKAGES=("zsh" "tmux" "alacritty" "kitty" "chezmoi" "age" "fzf" "fd" "bat" "ripgrep" "eza" "zoxide" "htop")
 
 detect_and_install() {
     if command -v apt &>/dev/null; then