Turn pkg and cmd functions into bins to avoid PATH issues in subshells

migrations/1755436367.sh

@@ -1,6 +1,6 @@
 echo "Add minimal starship prompt to terminal"
 
-if cmd-missing starship; then
-  pkg-add starship
+if omarchy-cmd-missing starship; then
+  omarchy-pkg-add starship
   cp $OMARCHY_PATH/config/starship.toml ~/.config/starship.toml
 fi