Refactor Dockerfile and clean up main.py

- Enhanced Dockerfile for platform-specific installations
    - Added ARG for TARGETPLATFORM and BUILDPLATFORM
    - Improved GPU support conditional on TARGETPLATFORM
  - Removed static pages mounting in main.py
  - Streamlined code structure to improve maintainability

main.py

@@ -340,9 +340,6 @@ app.add_middleware(
     allow_headers=["*"],  # Allows all headers
 )
 
-# Mount the pages directory as a static directory
-app.mount("/pages", StaticFiles(directory=__location__ + "/pages"), name="pages")
-
 # API token security
 security = HTTPBearer()
 CRAWL4AI_API_TOKEN = os.getenv("CRAWL4AI_API_TOKEN") or "test_api_code"
@@ -364,7 +361,6 @@ if os.path.exists(__location__ + "/site"):
     app.mount("/mkdocs", StaticFiles(directory="site", html=True), name="mkdocs")
 
 site_templates = Jinja2Templates(directory=__location__ + "/site")
-templates = Jinja2Templates(directory=__location__ + "/pages")
 
 crawler_service = CrawlerService()