feat: Initialize Symfony application structure with essential files

- Added index.php for application entry point.
- Created app.css for global styles.
- Introduced HomeController for handling the home route.
- Implemented Kernel class for application kernel.
- Added base.html.twig as the main template.
- Created index.html.twig for the home page layout.
- Set up Docker configurations for development and production environments.
- Included opcache configuration for development.

docker-compose.dev.yml

@@ -0,0 +1,16 @@
+services:
+  web:
+    environment:
+      APP_ENV: dev
+      APP_DEBUG: "1"
+      SERVER_NAME: ":80"
+    volumes:
+      - ./app:/app
+      - dev_cache:/app/var/cache
+      - dev_log:/app/var/log
+      - ./docker/opcache-dev.ini:/usr/local/etc/php/conf.d/opcache-dev.ini:ro
+    command: sh -c "composer install --no-interaction && frankenphp run --config /etc/frankenphp/Caddyfile --adapter caddyfile"
+
+volumes:
+  dev_cache:
+  dev_log: