Add omarchy CLI (#5477)

* Add omarchy CLI

* Remove outdated or internal

* Add bash completions for command

* Add omarchy command documentation

* Add missing docs

* Correct to what's now right

* Fix tests

---------

Co-authored-by: David Heinemeier Hansson <david@hey.com>

bin/omarchy-theme-remove

@@ -1,7 +1,8 @@
 #!/bin/bash
 
-# omarchy-theme-remove: Remove a theme from Omarchy by name
-# Usage: omarchy-theme-remove <theme-name>
+# omarchy:summary=Remove a user-installed theme
+# omarchy:args=[theme-name]
+# omarchy:examples=omarchy theme remove "Tokyo Night"
 
 if [[ -z $1 ]]; then
   mapfile -t extra_themes < <(find ~/.config/omarchy/themes -mindepth 1 -maxdepth 1 -type d ! -xtype l -printf '%f\n')