<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Implemented account deletion functionality with confirmation dialogs and success notifications.
- Added a warning modal for team workspace owners before account deletion.
- Introduced a new, richly formatted internationalized message for account deletion confirmation.
- Added a new dialog component to inform users of successful account deletion.
- **Improvements**
- Updated localization strings to provide detailed guidance and warnings for account deletion.
- Enhanced error handling by converting errors into user-friendly notifications.
- Simplified and improved the sign-out process with better error handling and streamlined navigation.
- **Style**
- Added new style constants for success and warning modals related to account deletion.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
### TL;DR
refactor: rename settings, indexer embedding -> embedding
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **Refactor**
- Unified naming in workspace settings from "Indexer & Embedding" to "Embedding" for improved clarity.
- Updated sidebar labels, tab keys, and test IDs to reflect the new naming convention.
- Streamlined the layout and organization of the embedding settings interface for a more consistent user experience.
- Simplified the export and component structure for embedding settings.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced "Indexer & Embedding" workspace settings to manage AI embedding for local content, including document ignoring and attachment uploads.
- Added UI components for embedding settings, attachments, and ignored documents with pagination and deletion capabilities.
- Provided comprehensive file-type icons for attachments.
- **Improvements**
- Added a new tab for indexing and embedding in workspace settings navigation.
- Included test identifiers on key UI elements to enhance automated testing.
- **Localization**
- Added English localization strings covering all embedding-related UI text and actions.
- **Bug Fixes**
- Enabled previously skipped end-to-end tests for embedding settings to improve reliability.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
fix AF-1790
fix AF-1774
added `DateSelectorDialog` for selecting a date through blocksuite;
added `AtMenuConfigService` for constructing the at menu config
fix AF-1776
fix PD-1942
resubmitted to replace #8877
