Upgrading to react-router 4

[mmahalwy]

Title of change

Upgrading to react-router 4

Checklist

• Unit tests written
• Manually tested
• New dependencies were added with yarn
• Prettier & ESLint were run

Screenshot

insert screenshot if needed

[mmahalwy]

@sabeurthabti wanted to get your thoughts on how to handle the server-side stuff and code splitting. So far, this is a pain. I previously used loadable-components here: https://github.com/quran/quran.com-frontend/pull/867/files#diff-cf27c1d543e886c89cd9ac8b8aeaf05b

[ahmedre]

Deployed to: http://staging.quran.com:32874

[thabti]

@mmahalwy I will be looking into this more tomorrow iA

[mmahalwy]

@sabeurthabti okay, this is working. I don't want to make this PR any larger and feel like a follow up PR can follow to polish. I think this is a good place to stop

[thabti]

Tbh I have not done much server-rendering recently, so I wouldn't have had much input.
Glad it is working.

LGTMI!

[mmahalwy]

rebuild

[mmahalwy]

@ahmedre I think jenkins died again :I

[ahmedre]

rebuild

[ahmedre]

thanks for the heads up - should be good now

[ahmedre]

Deployed to: http://staging.quran.com:32875