feat: deployment-readiness — Assets ins Package, importlib.resources, AUR PKGBUILD

Assets (default-avatar.svg, Icons) von data/ nach src/moongreet/data/
verschoben, damit sie automatisch im Wheel landen. Pfadauflösung in
greeter.py und main.py auf importlib.resources umgestellt. Dev-Fallback
in config.py entfernt — nur noch /etc/moongreet/moongreet.toml.
Beispiel-Configs für System-Deployment und AUR PKGBUILD ergänzt.

config/greetd.conf

@@ -0,0 +1,9 @@
+# ABOUTME: Example greetd configuration for Moongreet.
+# ABOUTME: Copy to /etc/greetd/config.toml and adjust as needed.
+
+[terminal]
+vt = 1
+
+[default_session]
+command = "moongreet"
+user = "greeter"

config/moongreet.toml

@@ -1,8 +1,9 @@
-# ABOUTME: Optional configuration for the Moongreet greeter.
-# ABOUTME: Background image and other visual settings.
+# ABOUTME: Example configuration for the Moongreet greeter.
+# ABOUTME: Copy to /etc/moongreet/moongreet.toml and adjust paths.
 
 [appearance]
-background = "../data/wallpaper.jpg"
+# Absolute path to wallpaper image
+background = "/usr/share/backgrounds/wallpaper.jpg"
 
 [behavior]
 # show_user_list = true