Twenty Twenty-One: RSS widget has empty link (feed icon)

[sabernhardt]

Instead of hiding the RSS icon link, the image inside the link was hidden. So that results in an empty link.

.widget_rss a.rsswidget .rss-widget-icon {
	display: none;
}

Steps to discover:

1. Create an RSS widget, with the Twenty Twenty-One theme active.
2. Visit a page with that widget in a sidebar.
3. Use the tab key to navigate to each link on the page.
4. When you arrive at the RSS widget heading, the first link is invisible but clickable.

If using a screen reader, the speech output is unreliable:

Edge/NVDA - "feed link heading level 2"
Firefox/NVDA - "blank"
Edge/Narrator - "link"
Firefox/Narrator - "link"

[sabernhardt]

tabbing through the links, the feed link is invisible

[sabernhardt]

highlighting the empty link

[sabernhardt]

CSS option (same as Twenty Twenty)

[sabernhardt]

I'd prefer removing the link entirely (see #52224), but the CSS patch would hide the link the same way that Twenty Twenty does:

.widget_rss .widget-title a.rsswidget:first-of-type {
	display: none;
}

[sabernhardt]

option 2: using proposed filter