feat(web): expand/collapse sidebar (#16768)

* feat: expand/collapse sidebar

* fix: general PR cleanup

- add skip link unit test
- remove unused tailwind styles
- adjust asset grid spacing
- fix event propogation

* fix: cleaning up event listeners

* fix: purchase modal and button on small screens

* fix: explicit tailwind classes

* fix: no animation on initial page load

* fix: sidebar spacing and reactivity

* chore: reverting changes to icons in nav and account info panel

* fix: remove left margin from the asset grid after merging in new timeline

* chore: extract search-bar changes for a separate PR

* fix: add margin to memories

web/src/lib/components/shared-components/side-bar/side-bar.svelte

@@ -84,10 +84,7 @@
       bind:isSelected={isSharingSelected}
     ></SideBarLink>
 
-    <div class="text-xs transition-all duration-200 dark:text-immich-dark-fg">
-      <p class="hidden p-6 group-hover:sm:block md:block">{$t('library').toUpperCase()}</p>
-      <hr class="mx-4 mb-[31px] mt-8 block group-hover:sm:hidden md:hidden" />
-    </div>
+    <p class="text-xs p-6 dark:text-immich-dark-fg">{$t('library').toUpperCase()}</p>
 
     <SideBarLink
       title={$t('favorites')}