fix: .sol file links

[JeneaVranceanu]

What does this PR introduce?

A fix for all URLs that were using /@lukso/ to reference .sol files.

PR Checklist

- [ ] Wrote Tests

• [x] Wrote & Generated Documentation (readme/natspec/dodoc)
• [x] Ran npm run lint && npm run lint:solidity (solhint)
• [x] Ran npm run format (prettier)

- [ ] Ran npm run build - [ ] Ran npm run test

I ran npm run lint and npm run format and got a long list of changed files and I think this needs to be addressed separately:

[CJ42]

@JeneaVranceanu please change the t arget branch to main

[JeneaVranceanu]

Closing in favour of https://github.com/lukso-network/lsp-smart-contracts/pull/959