Ensure .config is there

Strange that this should be necessary for arch-chroot, but let's give it
a try

install/config/config.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 
 # Copy over Omarchy configs
+mkdir ~/.config
 cp -R ~/.local/share/omarchy/config/* ~/.config/
 
 # Use default bashrc from Omarchy