Fix indentation/formatting of ternary operator in ContributionViewHolder

Author: ashishkumar468

app/src/main/java/fr/free/nrw/commons/contributions/ContributionViewHolder.java

@@ -120,8 +120,9 @@ public void init(int position, Contribution contribution) {
      */
     @Nullable
     private String chooseImageSource(String thumbUrl, Uri localUri) {
-        return !TextUtils.isEmpty(thumbUrl) ? thumbUrl : (localUri != null ? localUri.toString()
-            : null);
+        return !TextUtils.isEmpty(thumbUrl) ? thumbUrl :
+            (localUri != null ? localUri.toString() :
+                null);
     }
 
     /**