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/greeter.yml

@@ -0,0 +1,26 @@
+modules:
+  - type: dnf
+    install:
+      packages:
+      # sddm
+        - sddm
+        - sddm-themes
+
+        # added libraries for quickshell
+        - qt5-qtgraphicaleffects
+        - qt5-qtimageformats
+        - qt5-qtmultimedia
+        - qt6-qtquickcontrols2
+        - qt6-qtsvg
+        - qt6-qtimageformats
+        - qt6-qtmultimedia
+        - qt6-qt5compat
+
+        # added for editing quickshell (qmlls)
+        - qt5-qtdeclarative-devel
+        - qt6-qtdeclarative-devel
+
+      # password keeper
+        - kf6-kwallet
+        - kwalletmanager
+        - pam-kwallet