🐛 Unexpected behavior for outgoing links on markdown pages

[alfredgrip]

Short description of the bug

When linking to website outside of dsek.se with markdown, it has to be properly written. Otherwise, it will not work.
This is because when writing outgoing links in markdown, you need to include https:// for it to register as an outgoing link. If https:// is not included, markdown thinks it's an internal link.

The most simple solution would be to inform people the correct way to write markdown links. But I think this can be solved programmatically. When the editor tries to save, scan the text for links and either try get a web-request for the link, or match it to some pattern (contains https:// or something). If any fails, disallow the change and inform the one trying to edit the page that they need the correct link format.

To Reproduce

Create an outgoing link without https://, i.e. [click here to visit another website](example.com).

Expected behavior

The markdown rendered text should take you to the outgoing page, i.e. https://example.com

Actual behavior

Tries to find the page internally, i.e. on dsek.se, so the user gets taken to dsek.se/example.com

Context

Currently, on https://www.dsek.se/contact-us, The Student Well-being Committee has such a link that doesn't work. It is written as [bit.ly/kontaktatrivsel](bit.ly/kontaktatrivsel), but markdown will direct you to https://www.dsek.se/bit.ly/kontaktatrivsel which doesn't exists.

Environment (If applicable)

Everywhere