Import and Export Functionality (#698)

* feat(backup): add BackupViewSet for data export and import functionality

* Fixed frontend returning corrupt binary data

* feat(import): enhance import functionality with confirmation check and improved city/region/country handling

* Potential fix for code scanning alert no. 29: Information exposure through an exception

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

* Refactor response handling to use arrayBuffer instead of bytes

* Refactor image cleanup command to use LocationImage model and update import/export view to include backup and restore functionality

* Update backup export versioning and improve data restore warning message

* Enhance image navigation and localization support in modal components

* Refactor location handling in Immich integration components for consistency

* Enhance backup and restore functionality with improved localization and error handling

* Improve accessibility by adding 'for' attribute to backup file input label

---------

Co-authored-by: Christian Zäske <blitzdose@gmail.com>
Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

frontend/src/lib/components/LocationCard.svelte

@@ -273,7 +273,7 @@
 				{#if type != 'link'}
 					<div class="flex justify-between items-center">
 						<button
-							class="btn btn-neutral btn-sm flex-1 mr-2"
+							class="btn btn-base-300 btn-sm flex-1 mr-2"
 							on:click={() => goto(`/locations/${adventure.id}`)}
 						>
 							<Launch class="w-4 h-4" />