feat: recent activity card on Home and Retention card on Settings

api/handlers/activity/activityHandler.go

@@ -40,7 +40,7 @@ type filterQuery struct {
 type listQuery struct {
 	filterQuery
 	Page int `validate:"gte=1"`
-	Size int `validate:"oneof=25 50 100"`
+	Size int `validate:"oneof=5 25 50 100"`
 }
 
 type actorResponse struct {