chore: update frontend folder

frontend/web/src/css/index.css

@@ -0,0 +1,25 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+body,
+html,
+#root {
+  @apply text-base w-full h-full;
+  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans", "Noto Sans CJK SC", "Microsoft YaHei UI", "Microsoft YaHei",
+    "WenQuanYi Micro Hei", sans-serif, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol",
+    "Noto Color Emoji";
+}
+
+@layer utilities {
+  /* Hide scrollbar for Chrome, Safari and Opera */
+  .no-scrollbar::-webkit-scrollbar {
+    display: none;
+  }
+
+  /* Hide scrollbar for IE, Edge and Firefox */
+  .no-scrollbar {
+    -ms-overflow-style: none; /* IE and Edge */
+    scrollbar-width: none; /* Firefox */
+  }
+}