Simplified selector for comments `Post` button.
Simplified selector for comments `Post` button.

Simplified jQuery selector for the comments `Post` button.

From review requesting changes.

Makes a minor refactor too, but that's not a change requested by the
review. The new code honors better the conditions actually tested when
writing the changes in this and the previous revision.

ArtOfCode-/qpixel,ArtOfCode-/qpixel,ArtOfCode-/qpixel,ArtOfCode-/qpixel