Reader: make "in-stream" comment bubble more useful

[designsimply]

Raised by @shaunandrews

When viewing your Reader stream, there's a handy comment count shown for posts that support it:

Unfortunately, this icon doesn't do anything when you click on it—well, it opens the full post view, but it feels like it should do something else. The easy solution is to have it open the full post view and scroll down to the comments. But this has issues, since we don't load the comments instantly when the full post view is opened. Anyways, it feels a little weak. Here's a solution that I think makes it easier to read and post comments quickly, without needing to open the full post view:

Clicking on the comment bubble would open a popover with the comment list. For longer threads, the popover will have its own scrolling. Thoughts?

Notes from @blowery

One niggle with inlining comments: we don't currently have a way to load more than the first "page" of comments. Because of how comments work in the API, our first page is the most recent 10 replies and all their replies.

This isn't great for the comment list in either place, but i feel like it's especially weird here, as we can't use IS to load more comments, like we were potentially planning to do on the full post view. We'll need some kind of button to initiate the load. Probably a "load earlier comments" button at the top of the list?

Note from @shaunandrews

Probably a "load earlier comments" button at the top of the list?

Ah yes, I recall exploring this earlier:

Additional discussion in 9911-gh-calypso-pre-oss but the notes above are the gist and the end result of the conversations to date.

[lizkarkoski]

#2726 was closed as duplicate, but this issue does not mention mobile view. Right now on mobile, clicking the comment icon does not do anything. Whereas on desktop it opens the single post view.

[stale]

This issue has been marked as stale because it hasn't been updated in a while. It will be closed in a week. If you would like it to remain open, can you please comment below and see what you can do to get things moving with this issue? Thanks! 🙏

[blowery]

oldy-but-a-goody

[github-actions]

This issue is stale because it has been 180 days with no activity. You can keep the issue open by adding a comment. If you do, please provide additional context and explain why you’d like it to remain open. You can also close the issue yourself — if you do, please add a brief explanation and apply one of relevant issue close labels.

[worldomonation]

Hi! I'm performing triage on older bugs as part of Quality Squad's efforts to cut down on backlog issue counts.

I tried on both Desktop and Mobile web versions and found that clicking on the Comment icon from Reader view did open up the article in question and scrolled down to the comments field.

In light of this, I propose that this issue be closed as Closed - Not Reproducible.