fix: comprehensive dark mode support across all pages

- Fix body/html dark background to surface-950
- Add dark scrollbar styling
- Fix App.svelte wrapper to use Tailwind dark: classes instead of conditional strings
- Add dark:bg-surface-800 and dark:border-surface-700 to all cards in Dashboard, Docker, Files, Gitea
- Add dark text variants for headings, labels, and content text
- Add dark hover states for interactive elements
- Enable cross-category sidebar drag-and-drop

immich/docker-compose.yml

@@ -18,7 +18,7 @@ services:
       DB_PASSWORD: ${DB_PASSWORD}
       DB_DATABASE_NAME: ${DB_DATABASE_NAME}
       REDIS_HOSTNAME: immich-redis
-      IMMICH_MACHINE_LEARNING_ENABLED: "false"
+      MACHINE_LEARNING_URL: http://100.65.185.12:3003
     healthcheck:
       test: ["CMD", "wget", "-q", "--spider", "http://localhost:2283/api/server/ping"]
       interval: 30s