Upgrade dependencies and enhance TypeScript support

This merge request includes:

• Upgraded @emotion/react and @emotion/styled to versions 11.13.3 and 11.13.0 respectively, aligning them with 'activatee account' UI project.
• Updated @mui/material and @mui/icons-material to version 6.0.1.
• Introduced types specification in the exports field for TypeScript support.
• Expanded module exports in src/index.ts to include utilities, components, constants, and themes, allowing imports when using this package.
• Modified CookieBanner component in src/components/CookieBanner/CookieBanner.tsx aligningmui v6.
• Updated the snapshot test for CookieBanner.

Additional changes include updates to the CHANGELOG, README, and usage examples to reflect these changes.