Add some text to the loading dots for noscript users

[LordAro]

I have a user that likes to disable Javascript. I know, I know...

However, because the css for the mermaid-dots are loaded via JS... it never displays anything, making it unclear that there's content missing from the page. So, add a little extra content to the mermaid-dots div.

There might be a better solution to get the mermaid-dots css included on pageload, rather than via js callback, but I don't know it.

I'd use