Add “Save to Local” buttons and chat/voice interaction to Maps, Annotation, and Video modules

[morningstarxcdcode]

Hey guys! I added “Save to Local” buttons in maps, annotations, and videos so you can download your data super easily. Also, the Maps now let you chat or talk with Gemini AI, and it talks back too! Plus, I fixed some colors so text looks cleaner and made embeds safer. Hope this makes using the app way more fun and safe. Let me know what you think or wanna add!

Feel free to tweak based on your style! The key is to be honest, clear, polite, and highlight the user benefits. 😊

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[gemini-code-assist]

Summary of Changes

Hello @morningstarxcdcode, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances user interaction and data management capabilities across the Maps, Annotation, and Video modules. It introduces direct local data export, integrates conversational AI into the Maps experience, and includes important security and UI refinements to improve the overall application usability and safety.

Highlights

• Data Export Functionality: Introduced 'Save to Local' buttons across the Maps, Annotation (Spatial), and Video modules. This allows users to download relevant module data, such as map location and caption, spatial annotations (bounding boxes, points, lines), and the current video module state, as local files.
• Maps AI Integration: Added Gemini AI chat and voice interaction capabilities to the Maps module. Users can now type or speak queries to the AI, and the AI's responses are displayed in a chat interface and also spoken aloud via text-to-speech.
• Enhanced Embed Security: Improved the security of embedded Google Maps iframes by adding a sandbox attribute, restricting potential malicious content and enhancing user safety.
• UI/UX and Backend Refinements: Updated color styling in the Spatial module for better text readability on captions and modified the video player to display timecodes with millisecond precision. Additionally, the video server's temporary file handling was made more robust by using os.tmpdir().

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[gemini-code-assist]

Code Review

This pull request introduces several new features, including "Save to Local" buttons, chat and voice interaction in the Maps, Annotation, and Video modules. The changes look good overall, but there are some security and maintainability concerns that need to be addressed. The most important issue is the insecure sandbox configuration in maps/function-declarations.js, which could lead to serious security vulnerabilities. Additionally, the XSS vulnerability in maps/script.js needs to be fixed to prevent malicious users from injecting arbitrary code into the application. Finally, the duplicated file download logic in spatial/src/hooks.tsx should be refactored into a reusable utility function to improve code maintainability.