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

Co-Authored-By: Tobias Groza <TobiGr@users.noreply.github.com>

Author: Stypox

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

@@ -162,7 +162,7 @@ public String getThumbnailUrl() throws ParsingException {
         try {
             JsonArray thumbnails = playerResponse.getObject("videoDetails").getObject("thumbnail").getArray("thumbnails");
             // the last thumbnail is the one with the highest resolution
-            return thumbnails.getObject(thumbnails.size()-1).getString("url");
+            return thumbnails.getObject(thumbnails.size() - 1).getString("url");
 
         } catch (Exception e) {
             String url = null;