Throttling

[alastairsounds]

This pull request introduces several enhancements and improvements to the Visual Studio Code extension for displaying both absolute and relative line numbers. The main changes include the addition of delay functionality to improve performance, updates to the extension's configuration, and various code optimizations.

Enhancements and new features:

• Added delay functionality to prevent re-rendering on repeated vim motions and included a delay configuration option in the extension settings (CHANGELOG.md, package.json, src/extension.ts). [1] [2] [3] [4] [5] [6] [7]

Configuration and documentation updates:

• Updated package.json to version 0.1.4 and added delay configuration option. [1] [2]
• Fixed a broken link in the README.md file.

Code optimizations and refactoring:

• Introduced a debounce function to optimize the update of line number decorations and prevent unnecessary re-renders (src/extension.ts). [1] [2] [3] [4]
• Updated the LineNumberManager class to use the new debounce function for various event handlers (src/extension.ts). [1] [2]