implement login dialog

client/package.json

@@ -3,6 +3,11 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
+    "@emotion/react": "^11.9.3",
+    "@emotion/styled": "^11.9.3",
+    "@fontsource/roboto": "^4.5.7",
+    "@mui/icons-material": "^5.8.4",
+    "@mui/material": "^5.8.7",
     "@testing-library/jest-dom": "^5.14.1",
     "@testing-library/react": "^13.0.0",
     "@testing-library/user-event": "^13.2.1",