code clarity

src/components/Overlays/PlayOverlay.vue

@@ -43,22 +43,22 @@
             'hasXDDifficulty'
         ],
         mounted: function() {
-            var difficultyObject = [
+            let difficultyObject = [
                 {difficulty: 0, value: this.$props.hasEasyDifficulty},
                 {difficulty: 1, value: this.$props.hasNormalDifficulty},
                 {difficulty: 2, value: this.$props.hasHardDifficulty},
                 {difficulty: 3, value: this.$props.hasExpertDifficulty},
                 {difficulty: 4, value: this.$props.hasXDDifficulty}
             ]
-            var trueCount = 0;
-            var singleDiff = {};
+            let trueCount = 0;
+            let singleDiff = {};
             difficultyObject.forEach(e => {
                 if (e['value'] == true) {
                     trueCount++
                     singleDiff == e
                 }
             });
-            if (trueCount == 1) {this.play(singleDiff.difficulty)}
+            if (trueCount == 1) this.play(singleDiff.difficulty);
 
             ipcRenderer.on("overlays-close", () => {
                 this.close();