The action menu (under the ... icon) has some items written in "Sentence case" and others in "Title Case". It would be more consistent if they were all cased the same way.
Here is the menu:
The first 3 items are all "Sentence case", while the bottom two are "Title Case". The same style should be used for both. Title case is probably more consistent with the rest of Kagi and would make "Web Archive" no longer an incorrect proper noun (the site is the Internet Archive's Wayback Machine – it's not referred to anywhere as the "Web Archive").