Add Markstream Vue

[Simon-He95]

🚀 Summary

Adds Markstream Vue to the AI Frameworks and SDKs section.

✅ Checklist

• I have read the contribution guidelines
• The tool is AI-related and useful for developers
• I have added a short, clear description of the tool
• The link is not a duplicate of an existing one
• The title of the link is properly capitalized
• The link follows the Awesome List format (- [Tool Name](link) – description)
• My change does not include unrelated files or changes

📌 Why is this tool awesome?

It solves the interface-specific problem of rendering partial Markdown during streamed LLM responses, with maintained Vue, React, Svelte, and Angular integrations.

🔗 Link

https://markstream-vue.simonhe.me/

📝 Additional context

Markstream Vue is MIT-licensed and I maintain the project.