Cleanup `portalnetwork` tests

[acolytec3]

The portalnetwork tests have a bunch of "skipped" tests and type failures we should clean up.

• Type failures are mnostly leftover Statenetwork stuff related to older variants of the state network. Run npm run typecheck from [repo]/packages/portalnetwork for type errors.
• We should look at all the it.skip tests and either remove, fix, or add stuff