fix(select): add inner padding to the dropdown

[IzumiSy]

Motivation

The Select popup has no inner padding, so highlighted options touch its edges. Menu, Combobox, and Autocomplete already provide a 4px inset.

Extract the Select-only fix described by .changeset/snug-lists-breathe.md from #560 so it can be reviewed and released independently of DataTable inline editing. The source PR remains unchanged.

Summary

• Add 4px inner padding to the Select popup, matching the other dropdown components.
• Update the three affected Select snapshots while preserving the current main-branch rendering.
• Include the original patch changeset; no DataTable changes or public API changes are included.

[github-actions]

Code Metrics Report

	main (06c59b8)	#607 (765dc79)	+/-
Coverage	88.9%	88.9%	0.0%
Test Execution Time	2m12s	1m36s	-36s

Details

  |                     | main (06c59b8) | #607 (765dc79) | +/-  |
  |---------------------|----------------|----------------|------|
  | Coverage            |          88.9% |          88.9% | 0.0% |
  |   Files             |            209 |            209 |    0 |
  |   Lines             |           6316 |           6316 |    0 |
  |   Covered           |           5616 |           5616 |    0 |
+ | Test Execution Time |          2m12s |          1m36s | -36s |

Code coverage of files in pull request scope (100.0% → 100.0%)

Files	Coverage	+/-	Status
packages/core/src/components/select/select.tsx	100.0%	0.0%	modified

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Reported by octocov