* Dont show account or profile alerts and informs on posts * Sort threads to put blurred items at bottom * Group blurred replies under a single 'show hidden replies' control * Distinguish between muted and hidden replies in the thread view * Fix types * Modify the label alerts with some minor aesthetic updates and to show the source of a label * Tune when an account-level alert is shown on a post * Revert: show account-level alerts on posts again * Rm unused import * Fix to showing hidden replies when viewing a blurred item * Go ahead and uncover replies when 'show hidden posts' is clicked --------- Co-authored-by: dan <dan.abramov@gmail.com>