Add Vercel Analytics and improve PDF export layout

The main changes are: - Add Vercel Analytics to track site usage -
Improve PDF invoice layout and pagination: - Better line height and
padding for description text - Dynamic row height based on content
length - More accurate pagination calculations - Prevent orphaned items
on last page - Clean up formatting and spacing - Remove database backup
and Docker files

docker-compose.yml

@@ -1,21 +0,0 @@
-services:
-  db:
-    image: postgres:15
-    environment:
-      POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: postgres
-      POSTGRES_DB: beenvoice
-      PGSSLMODE: disable
-    command: -c ssl=off
-    ports:
-      - "5432:5432"
-    volumes:
-      - postgres_data:/var/lib/postgresql/data
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U postgres"]
-      interval: 5s
-      timeout: 5s
-      retries: 5
-
-volumes:
-  postgres_data: