Return undefined instead of null for transition in useSortable

[clauderic]

Return undefined instead of null for transition in useSortable

[changeset-bot]

🦋 Changeset detected

Latest commit: af7fa8d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@dnd-kit/sortable	Patch

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[github-actions]

Size Change: +7 B (0%)

Total Size: 59.3 kB

Filename	Size	Change
packages/sortable/dist/sortable.cjs.development.js	3.85 kB	+3 B (0%)
packages/sortable/dist/sortable.cjs.production.min.js	2.52 kB	+1 B (0%)
packages/sortable/dist/sortable.esm.js	3.73 kB	+3 B (0%)

ℹ️ View Unchanged

Filename	Size
packages/accessibility/dist/accessibility.cjs.development.js	640 B
packages/accessibility/dist/accessibility.cjs.production.min.js	486 B
packages/accessibility/dist/accessibility.esm.js	503 B
packages/accessibility/dist/index.js	148 B
packages/core/dist/core.cjs.development.js	16 kB
packages/core/dist/core.cjs.production.min.js	10.1 kB
packages/core/dist/core.esm.js	15.8 kB
packages/core/dist/index.js	141 B
packages/modifiers/dist/index.js	144 B
packages/modifiers/dist/modifiers.cjs.development.js	642 B
packages/modifiers/dist/modifiers.cjs.production.min.js	471 B
packages/modifiers/dist/modifiers.esm.js	561 B
packages/sortable/dist/index.js	144 B
packages/utilities/dist/index.js	144 B
packages/utilities/dist/utilities.cjs.development.js	1.34 kB
packages/utilities/dist/utilities.cjs.production.min.js	802 B
packages/utilities/dist/utilities.esm.js	1.25 kB

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