downgrade bootstrap to a version compatible with React-Bootstrap 1.6.6 (#388)

Author: shivaji-kharse

client/package.json

@@ -159,7 +159,7 @@
   "dependencies": {
     "@babel/node": "^7.20.2",
     "@fortawesome/fontawesome-free": "^6.2.0",
-    "bootstrap": "^5.0.0",
+    "bootstrap": "4.6.2",
     "browserslist": "^4.21.4",
     "classnames": "^2.3.2",
     "codemirror": "^5.65.9",