[ZLlele]

Fixes #1931

This updates docsSource/sections/02-utilities.md to correct three documentation issues:

• Add the existing animate__delay-1s delay utility to the table.
• Replace the invalid --animation-duration variable with --animate-duration.
• Replace the non-existent animate__repeat class with the actual animate__repeat-1, animate__repeat-2, and animate__repeat-3 classes.

This is a documentation-only change. No runtime code, API, or generated files were modified.

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