fix chat; get rid of jquery

webroot/js/utils.js

@@ -0,0 +1,32 @@
+function getLocalStorage(key) {
+  try {
+    return localStorage.getItem(key);
+  } catch (e) {
+  }
+  return null;
+}
+
+function setLocalStorage(key, value) {
+  try {
+    localStorage.setItem(key, value);
+    return true;
+  } catch (e) {}
+  return false;
+}
+
+function jumpToBottom(id) {
+  const div = document.querySelector(id);
+  console.log(div.scrollTop, div.scrollHeight , div.clientHeight)
+  div.scrollTo({
+    top: div.scrollHeight - div.clientHeight,
+    left: 0,
+    behavior: 'smooth'
+  });
+}
+
+function uuidv4() {
+  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
+    const r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);
+    return v.toString(16);
+  });
+}