- Add new preference option to enable automatic AI summarization
- Update all localization files with new preference text
- Implement preference check in message display script
- Add default preference setting in options configuration
- Include preference toggle in options UI
This adds a user-configurable option to automatically generate and display AI summaries when viewing email messages, with appropriate warnings about data transmission to AI services.
Add new ThunderAI summary functionality that generates concise summaries
for email messages using the existing ThunderAI infrastructure. Includes
a new content script that creates a summary pane in the message display,
associated CSS styling, and backend integration for AI summary generation.
The feature shows a loading indicator while generating the summary and
falls back to showing truncated message content if the AI generation fails.
