[CRT-173] Update class creation

[bubudetp]

Summary by cubic

Improved the class creation flow with Chakra UI form components, inline validation, and icon-based navigation; also migrated the Task Bank to ChakraDataTable for cleaner filtering and actions, aligning with CRT-173.

• New Features

  • Rebuilt ClassForm using Chakra Input/Select with FormContainer and FormGrid; added inline errors and updated the create page with Breadcrumbs and PageHeading.
  • Migrated TaskTable to ChakraDataTable with ID/Title/Type columns, quick actions (details, delete), and an option to hide the search bar.
  • Added icons to TabNavigation and Breadcrumbs, plus support for custom breadcrumb items.

• Refactors

  • Removed PrimeReact table and the LazyTable hook in favor of @tanstack/react-table; simplified useAllTasks.
  • Added a small string util for capitalization; introduced Chakra recipes/theme tokens for input/select/button styling.

^{Written for commit 83933c8. Summary will update automatically on new commits.}

[cubic-dev-ai]

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