Comments: improve comment moderation text and default style for better UX

[lancewillett]

The comment moderation email confirmation isn't as helpful as it could be: "Your comment is awaiting moderation" doesn't completely suggest the comment went through successfully.

(This feedback originally suggested by Scott Berkun, I'm paraphrasing a bit.)

"When a commenter replies, the new comment appears in the middle of the screen, but buried inside the comment area is the message: "Your comment is awaiting moderation" -- often in very small text.

Suggested improvements:

1. Provide a better default visual indicator that the comment reply succeeded -- this confirms to the commenter that they did everything right.
2. Improve the text to say "Your comment was submitted successfully and is awaiting moderation."

Attached are before / after screenshots to illustrate (with Twenty Fourteen as an example theme since styles could be theme-specific.)

[rachelbaker]

This enhancement won't make 4.2, but I would like to consider for 4.3.

[eduardozulian]

So the idea is to also set a default style?

[rachelbaker]

Replying to eduardozulian:

So the idea is to also set a default style?

The goals are:

1. better communicate that the comment was submitted
2. make the confirmation message stand out (the current text is not noticeable) so the commenter is not confused why they do not see their comment appear immediately