[wallpaper] adding dark light wallpaper option

Author: killajoe

usr/share/wallpapers/EndeavourOS/contents/images/1024x768.png

@@ -1,7 +1,13 @@
 {
     "KPlugin": {
+        "Authors": [
+            {
+                "Email": "joekamprad@endeavouros.com",
+                "Name": "joekamprad",
+            }
+        ],
         "Id": "EndeavourOS",
         "License": "CC-BY-SA-4.0",
-        "Name": "EndeavourOS"
+        "Name": "EndeavourOS",
     }
 }