Improve the layout of the home page

static/search.js

@@ -0,0 +1,13 @@
+const searchInput = document.getElementById('movie-search');
+const datalist = document.getElementById('movies');
+const dataitems = new Map();
+Array.from(datalist.children).forEach(function (ch) {
+  dataitems.set(ch.value, ch.getAttribute('data-value'));
+});
+
+searchInput.addEventListener('change', function(e) {
+  const targetLocation = dataitems.get(e.target.value);
+  if (targetLocation) {
+    window.location.href = targetLocation;
+  }
+});