Add copy link at list page

• Add copy link button at search result list page
• Make action pop up at list / viewer page able to dismiss by tapping background
• Fix tag search to proper quote tag with space

Fix for back gesture

Fixed:

• Back gesture can sometime freeze the app
• Dismissing the keyboard in search will now also leave the search history

Fixes for panning & HUD

Fixed:

• Panning would reset viewer to the initial page when first entered viewer mode
• HUD would position at top left corner

Image loading progress indicator

Should work on iOS 14 ~ 26

Also included:

• migrated to UIScene
• changed search input position back to stacked on iOS 16+

Webp support fix on iOS 26

Should work on iOS 14 ~ 26

Tiled thumbnail support

Should work on iOS 11 ~ 15