Proposal: Add HTML to Markdown conversion for Discord embeds

[Lunanuuu]

Description

Add the convertHtmlToMarkdown function to convert HTML content into Markdown format to increase the quality of the Discord Webhook feature.

1. Anchor Tags (<a>): Converts links to Markdown links

   • Example: <a href="https://www.example.com">Example</a> becomes [Example](https://www.example.com)

2. Headings (<h1> to <h6>): Converts HTML headings to Markdown headings, with a maximum of three # characters

   • Example: <h1>Title</h1> becomes # Title

3. Unordered Lists (<ul> and <li>): Converts unorderd lists to Markdown lists with dashes

   • Example: <ul><li>Item 1</li><li>Item 2</li></ul> becomes - Item 1 - Item 2

4. Ordered Lists (<ol> and <li>): Converts ordered lists to numbered Markdown lists

   • Example: <ol><li>First item</li><li>Second item</li></ol> becomes 1. First item 2. Second item

5. Bold Text (<strong>): Converts bold/strong text to markdown bold text

   • Example: <strong>bold</strong> becomes **bold**

6. Italic Text (<i>): Converts italic text to Markdown italic text

   • Example: <i>italic</i> becomes *italic*

7. Blockquotes (<blockquote>): Converts blockquotes to Markdown blockquotes

   • Example: <blockquote>text</blockquote> becomes > text

8. Code (<code>): Converts code tags to Markdown code

   • Example: <code>code</code> becomes `code`

9. Horizontal Rules (<hr>): Converts horizontal rules to Markdown horizontal rules

   • Example: <hr> becomes --- (Discord does not yet support horizontal rules, but I think it's likely that they will be added in the future)

Screenshots of my tests: