Migrate to chezmoi with per-host sway/waybar configs

- Restructure repo into chezmoi source layout (dot_ prefix)
- Add .chezmoi.toml.tmpl mapping hostname to hosttype (laptop/desktop)
- Template sway config.d fragments (outputs/inputs/binds) per host
- Template waybar config.jsonc with shared bar/module definitions
- Host-scope pulsemeeter (flow) and teams-for-linux (desktop hosts) via .chezmoiignore
- Trim install.sh package lists to configured software + config deps
- Remove stale kitty.conf.bak and untracked host fragments

dot_config/sway/config.d/outputs.conf.tmpl

@@ -0,0 +1,11 @@
+{{ if eq .chezmoi.hostname "framework13pro" -}}
+output eDP-1 mode 2880x1920@120Hz
+{{- else if eq .chezmoi.hostname "flow" -}}
+# TODO: fill in flow's outputs (run: swaymsg -t get_outputs)
+# output DP-1 mode 2560x1440@144Hz position 0 0
+# output DP-2 mode 2560x1440@144Hz position 2560 0
+{{- else if eq .chezmoi.hostname "gata" -}}
+# TODO: fill in gata's outputs (run: swaymsg -t get_outputs)
+# output DP-1 mode 2560x1440@144Hz position 0 0
+# output DP-2 mode 1920x1080@60Hz position 2560 0
+{{- end }}