* use dominantCoverColors as background for cover so it's less tinted by theme color, also if CoverCache is corrupted, favorite entries can still show color
* add loading animation while cover is fetching image
* Bulk-selection using default isSelected style
* fix cover's background & tint when AsyncImage is Error/Fallback/PlaceHolder
* Widget's cover color when unable to load cover image
Move Widget to seperate module
- Create a core module for presentation. Widget and App will share some resources and hopefully composables
(cherry picked from commit 12e41b6e6f3b5d95d19e1caa6c9fbe5eb6c9749c)