Update markdown render and parse external links #263

[rmenner]

Alaska Airlines Pull Request

Type of change:

Please delete options that are not relevant.

• [ ] New capability
• [x] Revision of an existing capability
• [ ] Infrastructure change (automation, etc.)
• [ ] Other (please elaborate)

Checklist:

• [x] My update follows the CONTRIBUTING guidelines of this project
• [x] I have performed a self-review of my own update

By submitting this Pull Request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Pull Requests will be evaluated by their quality of update and whether it is consistent with the goals and values of this project. Any submission is to be considered a conversation between the submitter and the maintainers of this project and may require changes to your submission.

Thank you for your submission!
-- Auro Design System Team

Summary by Sourcery

Enhancements:

• Refactor markdown rendering to use a new component, RenderRemoteMarkdown, for fetching and displaying markdown content.

[sourcery-ai[bot]]

Reviewer's Guide by Sourcery

This PR refactors the markdown rendering functionality by introducing a new reusable RenderRemoteMarkdown component and updating the external link handling. The changes centralize markdown rendering logic, improve code reusability, and enhance the styling of external links.

Class diagram for RenderRemoteMarkdown component

classDiagram
    class RenderRemoteMarkdown {
        +useState()
        +useEffect()
        +fetchData()
        +ReactMarkdown
        +remarkGfm
        +remarkRehype
        +rehypeHighlight
        +rehypeExternalLinks
        +rehypeRaw
    }
    note for RenderRemoteMarkdown "This component fetches and renders markdown content from a URL."

Updated class diagram for AuroComponentContent

classDiagram
    class AuroComponentContent {
        -getMarkdownText()
        +componentDidMount()
        +RenderRemoteMarkdown
    }
    note for AuroComponentContent "Replaced getMarkdownText with RenderRemoteMarkdown for markdown rendering."

File-Level Changes

Change	Details	Files
Created a new reusable RenderRemoteMarkdown component for handling remote markdown content	Implemented a React functional component using hooks for fetching and rendering markdown Added support for various markdown plugins including remarkGfm, rehypeHighlight, and rehypeExternalLinks Centralized markdown rendering logic that was previously duplicated across multiple files	src/functions/renderRemoteMarkdown.js
Refactored external link handling in markdown content	Replaced custom external link renderer with rehypeExternalLinks plugin Updated CSS styling for external link icons Added base64 encoded SVG for external link icon	src/sass/markdown.scss
Updated all component files to use the new RenderRemoteMarkdown component	Removed duplicate getMarkdownText methods Replaced dangerouslySetInnerHTML with RenderRemoteMarkdown component Added rehypeExternalLinks plugin configuration to all markdown renderers	src/functions/renderComponentPage.js src/functions/renderMarkdownPage.js src/content/dynamic/_template/component.js src/content/dynamic/contributing/contributing.js src/content/dynamic/contributing/dod.js src/content/dynamic/tokenlist/component.js

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[jason-capsule42]

Additional change request - make sure to update all dependencies