Refactor components to simplify them

src/helper/add-support-for-tab-navigation.ts

@@ -0,0 +1,7 @@
+export const addSupportForTabNavigation = () =>
+  document.addEventListener('keydown', (e) => {
+    if (e.key === ' ') {
+      (document.activeElement as HTMLElement)?.click();
+      e.preventDefault();
+    }
+  });

src/helper/random.ts

@@ -3,7 +3,9 @@ export class Random {
 
   public get next(): number {
     // result is in [0, 1)
-    return ((2 ** 31 - 1) & (this.seed = Math.imul(48271, this.seed))) / 2 ** 31;
+
+    this.seed = Math.imul(48271, this.seed);
+    return ((2 ** 31 - 1) & this.seed) / 2 ** 31;
   }
 
   public choose<T>(list: Array<T>): T {

src/helper/remove-unnecessary-outlines.ts

@@ -0,0 +1,4 @@
+export const removeUnnecessaryOutlines = () =>
+  document.addEventListener('click', () =>
+    (document.activeElement as HTMLElement).blur?.()
+  );

src/helper/scroll-to-fragment.ts

@@ -0,0 +1,6 @@
+export const scrollToFragment = () => {
+  // it might be necessary when the page takes too long to load
+  if (location.hash) {
+    document.getElementById(location.hash.slice(1))?.scrollIntoView();
+  }
+};