feat(Channel): Add getters for all optional tabs

[absidue]

Description

Follow up to #296

Since making that pull request, I've noticed that there are auto generated channels that don't have any tabs like https://www.youtube.com/@gaming (technically it does have a single tab but it's unlabeled and doesn't have a navigation endpoint) so I've added getters for the remaining tabs. Additionally it doesn't have a search field, so I added a getter for that too.

Type of change

• New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have checked my code and corrected any misspellings

[absidue]

The failing test is a search one and is unrelated to any changes made in this pull request.

[ChunkyProgrammer]

Would it be easy to add getters for the optional tabs on this channel too (I'm not sure as the channel is formatted weirdly)? https://www.youtube.com/channel/UC1Bi3laa7in6xWrOz2vx_sw

There is also a store tab that could be added to this PR:
https://www.youtube.com/@TakeOneTech/store

[LuanRT]

Would it be easy to add getters for the optional tabs on this channel too (I'm not sure as the channel is formatted weirdly)? https://www.youtube.com/channel/UC1Bi3laa7in6xWrOz2vx_sw

Interesting, it does have the same overall structure of other channels, but that URL seems to redirect to this channel id: https://www.youtube.com/channel/UClgRkhTL3_hImCAmdLfDE4g (InnerTube returns a navigate action in the onResponseReceivedActions array), so we'd have to add some logic to handle that redirect otherwise the library will throw an error.

There is also a store tab that could be added to this PR: https://www.youtube.com/@TakeOneTech/store

There's no Channel#getStore() method for that tab yet, so that should probably be implemented first before adding the getter.

[absidue]

whoops, definitely a typo 🙈