Merge pull request #50 from MilyMilo/fix-empty-category

Fix challenge board so with challenges with an empty category aren't loaded multiple times

assets/js/challenges.js

@@ -202,7 +202,7 @@ Alpine.data("ChallengeBoard", () => ({
   getChallenges(category) {
     let challenges = this.challenges;
 
-    if (category) {
+    if (category !== null) {
       challenges = this.challenges.filter(challenge => challenge.category === category);
     }