fix to always render selfReactions with background color

= fix type of list in stringToArrayList

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/java/com/nextcloud/talk/data/source/local/converters/ArrayListConverter.kt

@@ -33,6 +33,6 @@ class ArrayListConverter {
             return null
         }
 
-        return LoganSquare.parseList(value, List::class.java) as ArrayList<String>?
+        return LoganSquare.parseList(value, String::class.java) as ArrayList<String>?
     }
 }