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

dot_local/bin/kitty_up.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+SOCKET="unix:/tmp/kitty"
+
+if kitty @ --to "$SOCKET" focus-window 2>/dev/null; then
+  kdotool search --class kitty | head -1 | xargs kdotool windowactivate
+else
+  kitty --listen-on "$SOCKET" &
+fi