Merge pull request TeamNewPipe#1239 from AudricV/yt_fix-shorts-thumbnails-extraction

[YouTube] Fix Shorts' thumbnails extraction in their channel tab

Author: TobiGr

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeShortsLockupInfoItemExtractor.java

@@ -14,7 +14,7 @@
 
 import java.util.List;
 
-import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.getThumbnailsFromInfoItem;
+import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.getImagesFromThumbnailsArray;
 import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 /**
@@ -78,8 +78,8 @@ public String getUrl() throws ParsingException {
     @Nonnull
     @Override
     public List<Image> getThumbnails() throws ParsingException {
-        return getThumbnailsFromInfoItem(shortsLockupViewModel.getObject("thumbnail")
-                .getObject("sources"));
+        return getImagesFromThumbnailsArray(shortsLockupViewModel.getObject("thumbnail")
+                .getArray("sources"));
     }
 
     @Override