The floating anchors beside the entries and comments were partially or

entirely off-screen for the initial status updates entry, due to

assumptions that they'd be placed alongside entries with avatars. This

change fixes up those assumptions by setting appropriate offsets based

on whether the entry has an avatar.
While there's only so much space alongside the initial status updates

entry, there's just enough room for the link and a couple of pixels of

space.
There's also an adjustment being applied to floating anchors for

replies to compensate for the border used for highlighting new replies

(which is always present, though transparent if a reply is not new).

This keeps the anchors aligned perfectly.

Tested the anchor positioning for the initial status updates entry

and on other types of entries, both for top-level comments and replies.

Checked positioning to make sure all anchors on a given entry were

pixel-aligned.