feat(filebrowser): add filebrowser stack

compose/filebrowser/.env.example

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+HTTP_PORT="8080"
+DATA_PATH="/path/to/your/data"
+FB_BASEURL="/"

compose/filebrowser/docker-compose.yml

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+services:
+  filebrowser:
+    image: hurlenko/filebrowser
+    container_name: filebrowser
+    env_file:
+      - .env
+    user: "${PUID:-1000}:${PGID:-1000}"
+    ports:
+      - "${HTTP_PORT:-8080}:8080"
+    volumes:
+      - "${DATA_PATH:?DATA_PATH not set}:/data"
+      - "${VOLUMES_DIR:?VOLUMES_DIR not set}/filebrowser:/config"
+    environment:
+      - FB_BASEURL: "${FB_BASEURL:-/}"
+    restart: unless-stopped