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.

app/config/routes.yaml

@@ -0,0 +1,11 @@
+# yaml-language-server: $schema=../vendor/symfony/routing/Loader/schema/routing.schema.json
+
+# This file is the entry point to configure the routes of your app.
+# Methods with the #[Route] attribute are automatically imported.
+# See also https://symfony.com/doc/current/routing.html
+
+# To list all registered routes, run the following command:
+#   bin/console debug:router
+
+controllers:
+    resource: routing.controllers