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* Remove outdated or internal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

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

bin/omarchy-install-terminal

@@ -1,6 +1,8 @@
 #!/bin/bash
 
-# Install one of the approved terminals and set it as the default for Omarchy (Super + Return etc).
+# omarchy:summary=Install one of the approved terminals and set it as the default for Omarchy (Super + Return etc).
+# omarchy:args=<alacritty|ghostty|kitty>
+# omarchy:requires-sudo=true
 
 if (($# == 0)); then
   echo "Usage: omarchy-install-terminal [alacritty|ghostty|kitty]"