feat(docs): planetar component descriptions & rethink naming [1h]

[mesqueeb]

Prerequisite

#19

Goal

• write a short component description for each component in a JSDoc above the export default section

• rename ApiComponentExample to ApiCardInteractive

• renameMarkdownSection and CodeBlockSection to something else:

So we have some components which end in ...Section because they are to be used as a documentation "section", which incorporate whatever ... stands for with an extra section of some text?

This makes sense.

However, MarkdownSection and CodeBlockSection are a bit different as they just allow the use of a filePath as opposed to Markdown and CodeBlock.
Things to think about:

is it really necessary to separate Markdown and CodeBlock with their counterparts that can accept a filePath?

I believe so because projects not relying on webpack that still want to use Markdown might have problems when the webpack related code is included. But we need to rename Section to something else.