feat: Web concurrency (#2347)

* feat: Fork multiple processes

* Remove boxen

* comment

* chore: Add support for Heroku DATABASE_CONNECTION_POOL_URL
closes #2306

package.json

@@ -58,7 +58,6 @@
     "babel-plugin-styled-components": "^1.11.1",
     "babel-plugin-transform-class-properties": "^6.24.1",
     "boundless-arrow-key-navigation": "^1.0.4",
-    "boxen": "^5.0.1",
     "bull": "^3.5.2",
     "cancan": "3.1.0",
     "chalk": "^4.1.0",
@@ -160,6 +159,7 @@
     "styled-components": "^5.2.3",
     "styled-components-breakpoint": "^2.1.1",
     "styled-normalize": "^8.0.4",
+    "throng": "^5.0.0",
     "tiny-cookie": "^2.3.1",
     "tmp": "^0.2.1",
     "turndown": "^7.1.1",