Migrate Cloudflare redirects from UI configuration to using _redirects file

[Relequestual]

Currently redirects are configured through the Cloudflare admin area for redirect rules.
Given we are using Cloudflare pages, we can specifiy redirects using a Cloudflare Pages function, a _redirects file.

Ideally, we should use a file in the repo over admin area configuration where possible.

Documentation: https://developers.cloudflare.com/pages/platform/redirects

[benjagm]

This is cool, thanks Ben. We'll work on this as soon as possible.

[prajjwalyd]

Hello! Can you please provide details about the existing redirects?

[benjagm]

Let me share them with you in a DM. Are you ok with working on this?

[prajjwalyd]

Yes Sure! I have sent you a DM on Slack.
My Display name is 'Prajjwal Yadav'.

[benjagm]

@prajjwalyd I just sent you a DM with the details of the redirects.

[benjagm]

We merged #406 but the redirect didn't worked Well need to review this behaviour.

[prajjwalyd]

@benjagm can you provide some more details on why it didn't work?

[benjagm]

I't seemed a problem with the slack redirect only. Basically, in the recording I shared that redirect rule was not using URI Paths what made it confusing to translate to the plain _redirects file. I did some changes and tests and now it seems to work.

Huge thanks @prajjwalyd