Refactor Select documentation to no longer mention SelectNext

[acelaya]

This PR follows-up on #1619

This PR replaces the /input-select-next documentation page with /input-select, which has very similar content and examples, but always using Select and MultiSelect and no longer mentioning SelectNext.

Additionally, it deprecates SelectNext, and recommends using one of the other two components as drop-in replacements.

Technically speaking, two breaking changes are introduced here:

• The /input-select-next URL will no longer work. I guess we could potentially make it redirect to /input-select if we think this is a big problem.
• The Option component's displayName has changed from 'SelectNext.Option' to 'Select.Option', which could make some test break, but I already have branches almost ready to transition away from SelectNext anyway, so it shouldn't be a big problem.
  • EDIT: I can confirm no tests break here, because we were finding options via Select.Option function reference, rather than via its display name.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.90%. Comparing base (73dfdf2) to head (acf7bea).

Additional details and impacted files

@@             Coverage Diff             @@
##              main    #1620      +/-   ##
===========================================
- Coverage   100.00%   99.90%   -0.10%     
===========================================
  Files           62       62              
  Lines         1071     1071              
  Branches       410      410              
===========================================
- Hits          1071     1070       -1     
- Misses           0        1       +1     

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[acelaya]

We can save one step here by directly calling SelectMain, which is going to be kept as the internal component long-term.

[acelaya]

Codecov is reporting a drop in code coverage, but I think it's a false positive. Locally, it reports a coverage of 100%, and if you go to codecov's report, there's no line highlighted as uncovered.

[robertknight]

Suggested change

	title: 'Selects',
	title: 'Select',

All the other menu items are named after the main component on that page, so I think we should do the same here.

[acelaya]

I used the plural form because that's what we do for Dialog and ModalDialog elements. The page's title is Dialogs and then there are two sub-sections for them.