Expose Select and MultiSelect aliases for SelectNext

[acelaya]

This PR exposes two new aliases for SelectNext, which are Select and MultiSelect. These two implicitly have multiple={false} and multiple={true} respectively, and do not allow the multiple prop to be provided.

This change serves two purposes:

• The main one is to solve an issue introduced in https://github.com/hypothesis/frontend-shared/pull/1601, which causes onChange's argument type to no longer be inferred based on the type of value. Select and MultiSelect are now enforcing one of the two type paths when mutiple is true or false, fixing the type inference. For more context on the issue, check this comment and the ones below.
• Additionally, it creates new simpler component names, where Select can transparently replace existing SelectNext usages, allowing us to eventually drop the SelectNext symbol in the next major release.

I tried to find a solution to the type inference at pure types definition level, but didn't quite get it, even after making types more complex, so I think this option is better, specially taking into consideration to additional benefit explained above.

[!NOTE]
This PR is easier to review ignoring whitespaces.

TODO

• [x] Document new component aliases and use them in examples to prove they work.
• [x] Test Select and MultiSelect in client and LMS projects, where <SelectNext /> and <SelectNext multiple /> is used, to confirm they work.
  • EDIT: Exposed these changes via yalc, and imported them in client and LMS, then replaced all SelectNext with Select. Everything works after a manual test, tests pass with a few minor changes, and typechecks pass.

Out of scope

We can probably replace all usages in this library of SelectNext with either Select or MultiSelect, as they will provide the same coverage, and promote their usage over SelectNext.

Additionally, we could even mark SelectNext as deprecated as a standalone component, and recommend using one of the other two.

All that will come in follow-up PRs, to avoid distractions from the new API being introduced here.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 100.00%. Comparing base (e2e88a3) to head (12d8e14).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1619 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 62 62 Lines 1066 1071 +5 Branches 410 410 ========================================= + Hits 1066 1071 +5 ```

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