sddm-theme-fixes-cleanup-and-wlogout (#70)

- Removed theme.conf for sddm theme
- added alt background
- renamed default background into kebab case
- renamed sddm.yml into greeter.yml
- removed duplicates in greeter.yml

Reviewed-on: #70
Co-authored-by: Eriq Taing <eriq12@protonmail.com>
Co-committed-by: Eriq Taing <eriq12@protonmail.com>

recipes/dnf/hyprland.yml

@@ -14,6 +14,7 @@ modules:
         - hyprland-qtutils
         - xdg-desktop-portal-hyprland
         - matugen
+        - wlogout
 
         # quickshell
         - quickshell-git