Finish the core function

New Updates:

• Improved Ignore Management:
  • Updated .gitignore to include .diffs files, preventing generated diff reports from being unintentionally committed.

Refinements & Feature Enhancements:

• Underlining Feature Refactor:

  • Replaced outdated <u> tags with <ins> for the underlining feature to align with modern HTML standards.
  • Simplified related class structures for better readability and maintainability.
  • Deprecated unused commands.

• Enhanced TypeScript Compilation:

  • Updated dependencies in package.json to include the latest versions of TypeScript, Node types, CodeMirror types, and Electron.
  • Adjusted tsconfig.json for improved type resolution and compatibility.
  • Added types.d.ts to handle missing event maps, ensuring smoother compilation.

Manifest & Plugin Description Updates:

• Revised manifest.json to align with the latest feature changes.
• Simplified plugin descriptions by removing outdated author and funding information.

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Bug Fixes:

• Addressed TypeScript build issues with new type definitions.
• Fixed center alignment shortcut example in documentation.