Add boilerplate code

[Joozty]

@viktor-yakubiv Consider this just basic boilerplate. I created templates for all three steps. We should probably merge it and start building registration on top of it. I still haven't figured out global store management. I think we don't need it for now. So it should be decided and added later.

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[viktor-yakubiv]

I see you copied most of the code. I do not very like it because it takes a lot of mess with it. Although, this is a better approach than creating the same mess from scratch. Let's refactor it step-by-step, I hope we will have time for it 👍

Some of my comments below describe the desired refactoring. They may be discussed but I expect them to be resolved with no action but another task is created instead ☝️

The code itself is hard to understand in some places, maybe because you were missing the context (it's my fault, sorry). Could you please simplify the code taking the following actions and ask for the review once again?

1. We do not need the second page ❌
2. The third page may be needed but later, but much later, you can either remove or store it somewhere. I propose to copy the branch and store it on GitHub but remove it from here ⚠️
3. It would be nice to add a card around the form(s) but it can be done separately ✅
4. I personally would like to merge templates back with the pages but it minor too ✅

[Joozty]

@viktor-yakubiv Thanks for your review. Please have a look now.

[viktor-yakubiv]

Thank you for removing extra pages. With your help, I managed to find which page exactly I should review. Please, remove a bit more extra code and I consider it's ready.

I created tasks for the conversations needed to resolve separately.

[viktor-yakubiv]

It's an awesome start 👍