*Docs launch - to be merged with PR # 1130 on substrate-docs

[jonnysmillie]

add developers page, add playground page, move smart-contracts page, add required components, change links, add assets, alter some styles

https://github.com/substrate-developer-hub/substrate-docs/pull/1130

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[rcos7]

Probably a design thing but the animations on these cards make me think they're clickable but its only the button thats clickable. Feels a bit weird to me

[rcos7]

Same with the CommunityCard. This one feels even weirder with the pointer cursor

[jonnysmillie]

@rcos7 I agree regarding the ambiguous nature of the hover effects and animation of these card elements, however, that is how they were implemented and I think changes to these styles would be site wide and therefore beyond the scope of this PR. Perhaps we can address this soon in another PR.

[rcos7]

@rcos7 I agree regarding the ambiguous nature of the hover effects and animation of these card elements, however, that is how they were implemented and I think changes to these styles would be site wide and therefore beyond the scope of this PR. Perhaps we can address this soon in another PR.

Ok cool. Would be good to mention it to design just so they're aware of the weird UX