This packages were needed for icons, but since icons are no longer needed, neither should packages change.

Added: Ability to save and load local windlight presets.
Added: Brought back Environment Settings window.
Changed: Overhauled and simplified Environment Settings window.
Changed: Brought back old Environment Settings menu layout.
Changed: Overhauled layout of Personal Lighting window and split it into Edit Sky and Edit Water.
Changed: Overhauled layout of Daycycle, Sky and Water Edit windows.
Misc: Implemented several performance optimizations from Alchemy Viewer.

Cancelable updates should not be installed if user quit without confirmation, ask again later

Previous update handled case of user terminating updater on 'precheck', new one works for updater termination on 'leap'

Update CEF binaries to most recent version: 75.0.6+g90ecd35+chromium-75.0.3770.80 (no Dullahan changes required)