Fix message types

src/github.com/matrix-org/go-neb/services/google/google.go

@@ -109,7 +109,7 @@ func (s *Service) cmdGoogleImgSearch(client *gomatrix.Client, roomID, userID str
 	var imgURL = searchResult.Link
 	if imgURL == "" {
 		return gomatrix.TextMessage{
-			MsgType: "m.text.notice",
+			MsgType: "m.notice",
 			Body:    "No image found!",
 		}, nil
 	}

src/github.com/matrix-org/go-neb/services/guggy/guggy.go

@@ -69,7 +69,7 @@ func (s *Service) cmdGuggy(client *gomatrix.Client, roomID, userID string, args
 
 	if gifResult.GIF == "" {
 		return gomatrix.TextMessage{
-			MsgType: "m.text.notice",
+			MsgType: "m.notice",
 			Body:    "No GIF found!",
 		}, nil
 	}