feat(web) add scrollbar with timeline information (#658)

- Implement a scrollbar with a timeline similar to Google Photos
- The scrollbar can also be dragged

web/src/lib/components/shared-components/immich-thumbnail.svelte

@@ -136,7 +136,7 @@
 	<div
 		style:width={`${thumbnailSize}px`}
 		style:height={`${thumbnailSize}px`}
-		class={`bg-gray-100 relative  ${getSize()} ${
+		class={`bg-gray-100 relative select-none  ${getSize()} ${
 			disabled ? 'cursor-not-allowed' : 'hover:cursor-pointer'
 		}`}
 		on:mouseenter={handleMouseOverThumbnail}