Ai/add fullscreen chat exports

[developerdanx]

Description

Screenshots (if applicable)

[Link to Figma Design](Figma URL here)

Implementation details

[github-actions]

🔍 Visual review for your branch is published 🔍

Here are the links to:

• the Visual Review Page

• the latest build on chromatic

• the full storybook

[github-actions]

Coverage Report for packages/react

Status	Category	Percentage	Covered / Total
🔵	Lines	17.81%	18466 / 103678
🔵	Statements	17.81%	18466 / 103678
🔵	Functions	43.64%	869 / 1991
🔵	Branches	70.21%	2614 / 3723

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
packages/react/src/ai.ts	0%	0%	0%	0%	1-21
packages/react/src/test-utils.tsx	0%	0%	0%	0%	1-30
packages/react/src/ai/AiChat/exports.ts	0%	0%	0%	0%	1-19
packages/react/src/ai/AiChat/components/ErrorMessage.tsx	0%	100%	100%	0%	3-9
packages/react/src/ai/AiChat/components/MessagesContainerFullscreen.tsx	0%	0%	0%	0%	1-238
packages/react/src/ai/AiChat/providers/AiChatTranslationsProvider.tsx	82.97%	100%	50%	82.97%	60-69
packages/react/src/experimental/exports.ts	0%	0%	0%	0%	1-33
packages/react/src/experimental/Navigation/ApplicationFrame/index.tsx	0%	0%	0%	0%	1-231
packages/react/src/experimental/Navigation/DaytimePage/index.tsx	0%	0%	0%	0%	1-140
packages/react/src/experimental/Navigation/Header/PageHeader/index.tsx	7.62%	100%	0%	7.62%	75-101, 104-330
packages/react/src/lib/providers/i18n/i18n-provider-defaults.ts	100%	100%	100%	100%
packages/react/src/lib/providers/i18n/i18n-provider.tsx	84.61%	100%	66.66%	84.61%	37-40
packages/react/src/testing/test-utils.tsx	100%	100%	60%	100%

Generated in workflow #8918 for commit e976844 by the Vitest Coverage Report Action

[github-actions]

size-limit report 📦

Path	Size
JS: Stable	602.26 KB (+0.01% 🔺)
JS: Experimental	974.85 KB (+0.1% 🔺)
CSS	72.28 KB (+0.2% 🔺)