Add force themed icon to icon suggestions

customattrs/src/main/java/de/mm20/launcher2/customattrs/CustomAttribute.kt

@@ -93,6 +93,7 @@ sealed class CustomIcon : CustomAttribute {
                         bgColor = payload.getInt("bg_color")
                     )
                 }
+                "force_themed_icon" -> ForceThemedIcon
                 else -> null
             }
         }
@@ -152,6 +153,14 @@ data class CustomThemedIcon(
     }
 }
 
+object ForceThemedIcon : CustomIcon() {
+    override fun toDatabaseValue(): String {
+        return jsonObjectOf(
+            "type" to "force_themed_icon"
+        ).toString()
+    }
+}
+
 /**
  * Use default icon, ignore any icon pack, themed icon or force adaptive settings.
  */