AppRoutes moved into separate file as TODO item

[berkelmas]

Summary

In fixtures/blocks, there is a TODO item as moving AppRoutes into separate file. I think it is because server/App.js should be decoupled from pages and we should have a separate file for having all screens with their route definitions as a better architecture.

Test Plan

The blocks app should run without any error to make sure that all imports in both newly created file(AppRoutes.js) and main file(App.js) are correct.

[sizebot]

Comparing: 28625c6...853103e

Critical size changes

Includes critical production bundles, as well as any change greater than 2%:

Name	+/-	Base	Current	+/- gzip	Base gzip	Current gzip
oss-stable/react-dom/cjs/react-dom.production.min.js	=	126.00 kB	126.00 kB	=	40.41 kB	40.41 kB
oss-experimental/react-dom/cjs/react-dom.production.min.js	=	128.82 kB	128.82 kB	=	41.35 kB	41.35 kB
facebook-www/ReactDOM-prod.classic.js	=	406.15 kB	406.15 kB	=	75.12 kB	75.12 kB
facebook-www/ReactDOM-prod.modern.js	=	394.52 kB	394.52 kB	=	73.31 kB	73.30 kB
facebook-www/ReactDOMForked-prod.classic.js	=	406.15 kB	406.15 kB	=	75.13 kB	75.13 kB

Significant size changes

Includes any change greater than 0.2%:

(No significant changes)

Generated by 🚫 dangerJS against 853103e

[berkelmas]

I cannot understand why sync_reconciler_forks step is failing though. Could anyone please help me ?