Removed DOS cr/lf on 2 assistant files

dashboard-assistant.js and preferences-assistant.js
Added custom notification sound selection

and version bumped to 1.4.4
Added option for full width thumbs in timelines

Thumb will be full panel width or 100% width of source image.
Fixed bug with fullwidththumbs and details view

Thumbs now showing again in details toaster if full width thumbs set