Update screenshots for new release (2.0.0)

Author: ADBeveridge

data/com.github.ADBeveridge.Raider.metainfo.xml

@@ -40,6 +40,7 @@
     <screenshot type="default">
       <image>https://raw.githubusercontent.com/ADBeveridge/raider/main/data/raider-screenshot1.png</image>
       <image>https://raw.githubusercontent.com/ADBeveridge/raider/main/data/raider-screenshot2.png</image>
+      <image>https://raw.githubusercontent.com/ADBeveridge/raider/main/data/raider-screenshot3.png</image>
     </screenshot>
   </screenshots>
   <releases>