fix: Routing back button in sharedLinks page (#13703)

* fix: go back to last page from shared links page. Handle albums page from shared links page routing

* add default route for sharing

* chore: remove redundant import

* remove unnecessary comment

---------

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

web/src/routes/(user)/albums/[albumId=id]/[[photos=photos]]/[[assetId=id]]/+page.svelte

@@ -128,6 +128,8 @@
 
     if (backUrl === AppRoute.SHARING && album.albumUsers.length === 0 && !album.hasSharedLink) {
       isCreatingSharedAlbum = true;
+    } else if (backUrl === AppRoute.SHARED_LINKS) {
+      backUrl = history.state?.backUrl || AppRoute.ALBUMS;
     }
   });
 

web/src/routes/(user)/sharing/sharedlinks/+page.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-  import { goto } from '$app/navigation';
+  import { goto, afterNavigate } from '$app/navigation';
   import ControlAppBar from '$lib/components/shared-components/control-app-bar.svelte';
   import CreateSharedLinkModal from '$lib/components/shared-components/create-share-link-modal/create-shared-link-modal.svelte';
   import {
@@ -50,9 +50,16 @@
     await refresh();
     editSharedLink = null;
   };
+
+  let backUrl: string = AppRoute.SHARING;
+
+  afterNavigate(({ from }) => {
+    let url: string | undefined = from?.url?.pathname;
+    backUrl = url || AppRoute.SHARING;
+  });
 </script>
 
-<ControlAppBar backIcon={mdiArrowLeft} onClose={() => goto(AppRoute.SHARING)}>
+<ControlAppBar backIcon={mdiArrowLeft} onClose={() => goto(backUrl)}>
   {#snippet leading()}
     {$t('shared_links')}
   {/snippet}