More 2022 Fonts queries

[bramstein]

While going through the data I found two issues:

• The variable font animation query did not check in keyframes.
• The font-variant vs. font-feature-settings query included normal and none as values. These values are used in several popular CSS frameworks which heavily skewed the results. They are now explicitly excluded from the results.

While working on this, I thought it would also fit the chapter's narrative to have the following new queries:

• The most popular OpenType feature tags used in CSS (to contract with the easier to use font-variant properties and the tags actually available in the fonts.)
• The most popular font-variant values.