Reader: Post Card VoiceOver concerns

[shiki]

A: Save and Like buttons do not use .selected traits

When hovering over a previously saved post, VoiceOver does not dictate “Selected”. The same with Like.

This can be fixed by using the .selected accessibility trait.

The dictation should then be like this:

• Hovering on a saved post: “Selected. Save Post. Button. Removes this post from my saved posts.”
• Hovering on an unsaved post: “Save Post. Button. Saves this post for later.”

B: Like button uses custom “selected” dictation

We currently dictate “This post is not in My Likes” which takes a long time to dictate. We should just use the .selected as described above.

C: Header is dictated twice when navigating manually

1. Hover on a post. The post author, site name, title, and content are dictated. ✔️
2. Swipe right to move to the next item. The next item is the header, which dictates the same thing as (1) again. ❌

In Post List, the next item is the Edit button. I think we can do a similar thing here and navigate to the Visit button.