Update to use matrix-react-sdk

vite.config.js

@@ -15,12 +15,11 @@ limitations under the License.
 */
 
 import { defineConfig } from "vite";
-import reactRefresh from "@vitejs/plugin-react-refresh";
 import svgrPlugin from "vite-plugin-svgr";
 
 // https://vitejs.dev/config/
 export default defineConfig({
-  plugins: [reactRefresh(), svgrPlugin()],
+  plugins: [svgrPlugin()],
   server: {
     proxy: {
       "/_matrix": "http://localhost:8008",