chore: Sentry performance monitoring (#1841)

* Hook up performance monitoring

* lint

package.json

@@ -69,6 +69,8 @@
     "@babel/preset-react": "^7.10.4",
     "@rehooks/window-scroll-position": "^1.0.1",
     "@sentry/node": "^5.23.0",
+    "@sentry/react": "^6.0.1",
+    "@sentry/tracing": "^6.0.1",
     "@tippy.js/react": "^2.2.2",
     "@tommoor/remove-markdown": "0.3.1",
     "autotrack": "^2.4.1",
@@ -148,7 +150,7 @@
     "react-keydown": "^1.7.3",
     "react-modal": "^3.1.2",
     "react-portal": "^4.0.0",
-    "react-router-dom": "^5.1.2",
+    "react-router-dom": "^5.2.0",
     "react-virtualized-auto-sizer": "^1.0.2",
     "react-waypoint": "^9.0.2",
     "react-window": "^1.8.6",