Update security middleware and update Docker configurations

- Added a new parameter to the SecurityMiddleware function to allow custom handling of forbidden requests.
- Updated Docker configurations to enable asset caching for improved performance.
- Bumped version number in the Dockerfile to 0.3.0 and refined the image description for clarity.
- Adjusted various frontend components and error handling to support new rate limiting and forbidden access messages.
- Improved documentation in multiple languages to reflect recent changes in features and security measures.

docker-compose.yml

@@ -12,6 +12,7 @@ services:
       - GITEA_SERVER=${GITEA_SERVER:-https://git.quad4.io}
       - CONFIG_PATH=/app/data/software.txt
       - UA_BLOCKLIST_PATH=/app/data/ua-blocklist.txt
+      - CACHE_ASSETS=true
     security_opt:
       - no-new-privileges:true
     restart: unless-stopped