fix!: metadata updates, change documentation to docs

[TarikGul]

⚠ BREAKING CHANGES

To reflect changes in @polkadot/api@5.1.1 changes have been made to 2 of the endpoints specifically, and 1 implicitly.

1. /pallets/{palletId}/storage
   The documentation field under each item in the items field will now be docs.

2. /pallets/{palletId}/storage/{storageItemId}
   The documentation field under each item in the items field will now be docs.

3. /runtime/metadata
   Similar to the above the metadata returned here just follows the most up to date metadata in polkadot-js so this route will
   implicitly have the same result as above.

Updates

Update the resolutions inside of the package.json to reflect polkadot-js

Update:

@polkadot/api => v5.1.1
@polkadot/apps-config => v0.94.2-79
@polkadot/util-crypto => v7.0.2
@substrate/calc => v0.2.2

Tests

I fixed and adjusted some of the expected responses for the tests regarding the breaking changes above.