Added first draft of channel page

client/src/App.tsx

@@ -0,0 +1,16 @@
+import { Routes, Route } from "react-router-dom";
+import BrowseLayout from "./components/BrowseLayout";
+import ChannelPage from "./pages/ChannelPage";
+
+function App() {
+  return (
+    <Routes>
+      <Route element={<BrowseLayout />}>
+        <Route path="/:channel" element={<ChannelPage />} />
+        <Route path="/" element={<h1>Hi</h1>} />
+      </Route>
+    </Routes>
+  );
+}
+
+export default App;