### What?
This PR fixes numerous links across the docs, both internal docs links
and external links. This PR also fixes some minor formatting issues in
some places, as well as optically aligns the markdown tables in tables
that had broken links.
### Why?
To properly link readers to the correct location in the docs, and for
better formatting and easier consumption.
### How?
Changes to many `.mdx` files in the `docs` folder.
Notes:
- There are duplicative section id's in `docs/authentication/email.mdx`,
I've fixed one such link, but have left it as is for now.
