feat: support web search and create app

[zhu-xiaowei]

Description

1. Supports web searches using Tavily, Google, Bing, and Baidu
2. Supports creating web applications with AI and web search capabilities
3. Support edit, share and import web App
4. Enable streaming response up to 15 minutes by API Gateway and Lambda
5. Support edit and resend the message
6. Add image gallery
7. Support clear all chat data
8. Support Amazon Nova Sonic 2
9. Improved chat input design for mobile
10. Fix input lag issue
11. Optimize code renderer performance

General Checklist

• The code changes have been fully tested
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of the least privilege, etc.)
• Documentation update for the change if required
• PR title conforms to conventional commit style
• If breaking change, documentation/changelog update with migration instructions

By submitting this pull request, I confirm that my contribution is made under the terms of the MIT-0 license.