feat: add mobile version of the "table of contents" #366
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.

Currently, on desktop, on the right side of the page, we have a persistent table of contents section that lists all the available headings within the markdown document. This section/component was hidden on mobile as its persistent nature would work on mobile.
This change, adds a mobile-optimized version of the above component, without the sticky/persistent nature.
Before:
After:
With the section opened:
Also, looks surprisingly good in dark-mode as well: