chore(deps): Update/purge project deps

[Tomahawk2191]

What did I do?

Purge old/unused dependencies and upgrade using bun update --latest && bunx knip

Note: will add knip.json config in a followup PR.

Root package.json

• @headlessui/react ^2.2.0 → ^2.2.10
• @mui/icons-material ^5.10.6 → ^9.3.1
• @sanity/client ^6.17.2 → ^8.2.0
• @sanity/image-url ^1.0.2 → ^2.1.1
• axios ^1.6.8 → ^1.19.0
• qs ^6.10.3 → ^6.15.3
• react/react-dom ^19.0.0 → ^19.2.8
• react-bootstrap ^2.1.2 → ^2.10.10
• react-card-flip ^1.1.5 → ^1.2.3
• react-router-dom ^6.17.0 → ^7.18.2
• react-swipeable ^7.0.0 → ^7.0.2
• prettier ^3.0.3 → ^3.9.6

sanity/package.json

• @sanity/cli ^3.40.0 → ^8.2.1 (moved from root deps into the studio)
• @sanity/color-input ^3.1.1 → ^6.1.4
• @sanity/vision ^3.40.0 → ^6.10.1
• sanity ^3.43.0 → ^6.10.1
• react/react-dom ^18.2.0 → ^19.2.8
• styled-components ^6.1.8 → ^6.5.3
• @sanity/eslint-config-studio ^4.0.0 → ^6.0.0
• @types/react ^18.0.25 → ^19.2.18
• eslint ^8.6.0 → ^10.9.0
• typescript ^5.1.6 → ^7.0.2

Removed

• Root: @testing-library/jest-dom, @testing-library/react, @testing-library/user-event, bootstrap, react-bootstrap-validation, web-vitals, ajv, eslint-plugin-jest, eslint-plugin-testing-library, react-error-overlay
• sanity/: react-icons, prettier

Other

• Root test script now runs with --passWithNoTests (src/App.test.js deleted)
• Root eslint config dropped the react-app/jest extend

How did I test it?

Required checks:

• Did you conduct a self-review?
• Have you written unit or integration tests?

What could go wrong in the future? What parts of your code should the reviewer pay the most attention to?

N/A

Additional Comments for the Reviewers

N/A

Screenshots

N/A

[fraander]

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[josh-torre]

Lgtm 🚀