V2.3.1: Small Additions, Fixes, and Improvements

New Features

Added a ProgressPopUp in Import that appears when adding items.
Esc now clears the selection in LCV.

Improvements

CollectionSelector's search is no longer case-sensitive.
Made CM header a few pixels taller.
Made header for LCV pages a few pixels taller.
CM settings are once again static, so their values persist even after leaving the page.
Swap ASC and DESC in query for CM when sorting by when last modified.

Fixes

Fix left and top margins on CM header.
Fix issue where 2 of the buttons in CM's sort div said 'Album' instead of 'Collection'.