test: improve vm image generation

tests/packer/init/archlinux-kde.user-data.yml

@@ -1,6 +1,9 @@
 #cloud-config
 
 hostname: ${hostname}
+locale: en_IE
+keyboard:
+  layout: ie
 
 ssh_pwauth: true
 users:
@@ -38,14 +41,14 @@ packages:
   - networkmanager
 
   # Install Graphical Interface
-  - xorg-server
-  - plasma
+  - plasma-meta
+  - plasma-wayland-session
   - sddm
   - konsole
-  - kde-applications
 
   # Install Applications
   - firefox
+  - chromium
   - terminator
 
 runcmd: