Add various performance improvements

src/App.vue

@@ -1,6 +1,6 @@
 <script>
 import axios from "axios";
-import moment from "moment";
+import dayjs from "dayjs";
 import Loading from "vue-loading-overlay";
 import { install } from "@github/hotkey";
 
@@ -55,7 +55,7 @@ export default {
   computed: {
     formatDate() {
       return (v) => {
-        return moment(String(v)).format("hh:mm A z (MM/DD)");
+        return dayjs(String(v)).format("hh:mm A z (MM/DD)");
       };
     },
     filteredTopics() {

src/theme.css

@@ -1,3 +1,26 @@
+/* Material Symbols font optimization - prevent flash of unstyled text */
+@font-face {
+  font-family: 'Material Symbols Outlined';
+  src: url('https://fonts.gstatic.com/s/materialsymbolsoutlined/v211/gok-H7zzDkdnRel8-DQ6KAXJ69wP1tGnf4ZGhQcyWwg.woff2') format('woff2');
+  font-weight: 100 700;
+  font-style: normal;
+  font-display: block;
+}
+
+.material-symbols-outlined {
+  font-family: 'Material Symbols Outlined';
+  font-weight: normal;
+  font-style: normal;
+  font-size: 24px;
+  line-height: 1;
+  letter-spacing: normal;
+  text-transform: none;
+  display: inline-block;
+  white-space: nowrap;
+  word-wrap: normal;
+  direction: ltr;
+}
+
 body {
   max-width: 100%;
 }