The contrast of hyperlinks in warning containers looks bad

[Jiralite]

Describe the bug

Hyperlinks in containers don't look particularly good. At a first glance (at least to me), it's not immediately apparent something is a hyperlink. Take this for example:

The link seems more like it is... highlighted over(?) which doesn't jump out as a link. The contrast of it with the background really isn't great too.

To Reproduce

1. Go to https://discordjs.guide/popular-topics/faq.html#how-do-i-find-all-online-members-of-a-guild
2. View the warning container

Device (please complete the following information):

• Device/OS: MacBook Pro (Mid 2015): macOS Big Sur 11.6
• Browser: Google Chrome
• Version: 94.0.4606.81

[WiseDevHelper]

I'd suggest adding a link icon just like the "open in new window" icon the guide uses for links to external pages.

[GodderE2D]

I'd suggest adding a link icon just like the "open in new window" icon the guide uses for links to external pages.

That icon signifies that the link goes to an external source or opens in a new tab. In this case, it's neither, so it really shouldn't be used here.

[Bubalo1234]

perhaps change the text color or make it italic

[almostSouji]

Will be resolved with a more exhaustive rewrite of guide visuals