fix: add lookupTypes to typegen imports

[Muhammad-Altabba]

Description

Fixes: #5765

The lookupTypes are missed from the list used to extract imports for the generated types.
This PR will add it back.

[Muhammad-Altabba]

The MR also resolves: polkadot-js/docs#252

[jacogr]

The build fails because of this. On the top-level imports it now tries to include the lookup types from @polkadot/types since it was added to the top-level definition.

https://github.com/polkadot-js/api/actions/runs/7158255406/job/19733755190?pr=5769

It has these dupes since in the next section we explicitly import from lookup on line 52.

[Muhammad-Altabba]

The build fails because of this. On the top-level imports it now tries to include the lookup types from @polkadot/types since it was added to the top-level definition.

https://github.com/polkadot-js/api/actions/runs/7158255406/job/19733755190?pr=5769

It has these dupes since in the next section we explicitly import from lookup on line 52.

So what is your suggestion to fix the issue?

And did you try to generate the files locally and saw that there are missed imports for lookups? Or were you able to generate with no issues?

Thanks,

[jacogr]

CI generates code for - Substrate, Kusama and Polkadot on each build and outputs it here - https://github.com/polkadot-js/api/tree/master/packages/api-augment/src.

So it gets used each time there is a PR and each time there is a build - it literally runs as part of the API build process. (It changes as the metadata is updated, i.e. here is an example of a PR in which the base Substrate metadata was bumped - https://github.com/polkadot-js/api/pull/5770/files)