feat(medusa): category list API can return all descendant (#3392)

* chore: category list API can return all descendant

* chore: category handle is no longer required via api

* chore: added treescope to sorting

* chore: address feedback on PR

.changeset/sour-frogs-warn.md

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+"@medusajs/medusa": patch
+---
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+feat(medusa): category list API can return all descendant