fix: intersection root margin match top offset

[zzxming]

Summary by CodeRabbit

• New Features

  • Introduced a new CSS class .gap for layout adjustments.
  • Added new utility functions for type-checking: isUndefined and isNumber.
  • Implemented a throttling and debouncing function to optimize event handling.
  • Enhanced header management in the Quill editor with new methods and improved performance.

• Bug Fixes

  • Updated header labels in the Quill editor for consistency.

• Documentation

  • Adjusted export statements for utility functions to improve module structure.

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

This pull request introduces several enhancements to the project's codebase, focusing on improving the header management functionality in a Quill editor. The changes span multiple files, including modifications to the header list class, addition of utility functions for throttling and type checking, and updates to the documentation. The primary goals appear to be refining the header tracking mechanism, improving performance, and adding more robust type-checking utilities.

Changes

File	Change Summary
docs/index.html	Added .gap CSS class creating a 3000px vertical space
docs/index.js	Updated Quill editor header text formatting, removing some multi-line insertions
src/index.ts	Significant refactoring of HeaderList class, including new methods for scroll handling and header updates
src/utils/functions.ts	Added throttleAndDebounce utility function for managing function execution
src/utils/index.ts	Updated exports to include new functions module
src/utils/is.ts	Added isUndefined and isNumber type-checking utility functions

Sequence Diagram

sequenceDiagram
    participant Editor as Quill Editor
    participant HeaderList as HeaderList Class
    participant Scroll as Scroll Listener
    
    Editor->>HeaderList: Text Changes
    HeaderList->>HeaderList: Update Headers
    Scroll->>HeaderList: Scroll Event
    HeaderList->>HeaderList: Throttle Scroll Handling
    HeaderList->>HeaderList: Update Header Highlights

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Headers dancing with new might!
Throttled scrolls and types so clear,
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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5a2b193 and 5abd2f3.

📒 Files selected for processing (6)

• docs/index.html (2 hunks)
• docs/index.js (1 hunks)
• src/index.ts (6 hunks)
• src/utils/functions.ts (1 hunks)
• src/utils/index.ts (1 hunks)
• src/utils/is.ts (1 hunks)

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