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/yazi/yazi.toml

@@ -0,0 +1,20 @@
+[plugin]
+
+prepend_previewers = [
+    { url = "*.csv", run = "rich-preview"}, # for csv files
+    { url = "*.md", run = "rich-preview" }, # for markdown (.md) files
+    { url = "*.rst", run = "rich-preview"}, # for restructured text (.rst) files
+    { url = "*.ipynb", run = "rich-preview"}, # for jupyter notebooks (.ipynb)
+    { url = "*.json", run = "rich-preview"}, # for json (.json) files
+#    { url = "*.lang_type", run = "rich-preview"} # for particular language files eg. .py, .go., .lua, etc.
+]
+
+[[plugin.prepend_fetchers]]
+url = "*"
+run = "git"
+group = "git"
+
+[[plugin.prepend_fetchers]]
+url = "*/"
+run = "git"
+group = "git"