[Table] upgrade to `@tanstack/table` v9

Package

v4.x

Description

TanStack Table has officially released version 9 (announcement blog post). The current implementation of UTable in @nuxt/ui relies on v8, which prevents users from leveraging new features, performance improvements, and updated TypeScript typing provided in v9.

Proposal: Upgrade the underlying @tanstack/vue-table (and related TanStack core table packages) dependency to v9 and update UTable to handle any breaking changes or updated APIs introduced in the new major release.

• Update @tanstack/vue-table / @tanstack/table-core dependencies to v9.x.
• Audit UTable component props, slots, and internals for breaking API changes in TanStack Table v9.
• Update internal table composables and types where applicable.
• Verify test suite and update documentation code examples.

Additional context

No response