Feat: Support Content Subdirectories

Which scope/s are relevant/related to the feature request?

content

Information

Right now, all of the content files must be placed in the content directory like /src/content/*.md in order for injectContent to work.

There may be cases where content needs to be separated. For example, maybe you have blog posts, but also project markdown files for a portfolio page. Something like this would be ideal (in order to make the blog list or project list components easier to write):

src/
└── content/
    └── posts/
    |   └── 2023-01-01-my-post.md
    |   └── 2023-01-12-my-other-post.md
    └──projects/
       └── some-awesome-app.md

Could we add another parameter to the injectContent() to accept a prefix? Then update the switchMap to something like this:

switchMap((slug) => {
      const filename = `/src/content/${prefix}${slug}.md`;

Happy to open a PR for this 😄

Describe any alternatives/workarounds you're currently using

No response

I would be willing to submit a PR to fix this issue

• Yes
• No