If an element has: `[href="./"]` then `assert_no_broken_links()` fails

[mdmintz]

If an element has: [href="./"] then assert_no_broken_links() fails

It's actually a valid href, which is just a link back to that same page.

Here's an example of that, where there's a link to Syntax Formats from the Syntax Formats page:

Also affects assert_no_404_errors(), which is a clone of assert_no_broken_links().

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There's also a separate issue regarding hrefs that start with ../. I'll probably just fix that as part of this ticket.

[mdmintz]

This was resolved in 4.20.8 - https://github.com/seleniumbase/SeleniumBase/releases/tag/v4.20.8