chore(mobile): svg logo (#8074)

* chore(mobile): anti-aliasing logo

* use svg

* adjust height

* better sizing

mobile/lib/shared/ui/immich_logo.dart

@@ -18,6 +18,7 @@ class ImmichLogo extends StatelessWidget {
         image: const AssetImage('assets/immich-logo.png'),
         width: size,
         filterQuality: FilterQuality.high,
+        isAntiAlias: true,
       ),
     );
   }