Auto-format with prettier

src/main/java/at/ac/uibk/gitsearch/web/rest/StatisticsResource.java

@@ -167,7 +167,7 @@ public class StatisticsResource {
 
         // TODO there is a race condition, if serveral parallel requests do not find an entry.
         if (searchService.findExerciseById(exerciseId).isPresent()) {
-        	// the exercise exists in the meta data search index
+            // the exercise exists in the meta data search index
             StatisticsDTO newStats = new StatisticsDTO();
             newStats.setDownloads(0);
             newStats.setViews(1);