added (somewhat) functional front-end

src/main/java/nl/herpiederpiee/appie_scraper/BonusManager.java

@@ -42,6 +42,10 @@ public class BonusManager {
     public static ArrayList<BonusItem> getBonusItems(String name){
         ArrayList<Pair<BonusItem, Integer>> list = new ArrayList<>();
 
+        if (name == null || name.trim().isEmpty()){
+            return bonusItems;
+        }
+
         for (BonusItem bonusItem : bonusItems) {
             Integer score = fuzzyMatchScore(name, bonusItem.title);
             list.add(Pair.pair(bonusItem, score));