Refactor frontend components and backend migrations

- Removed TradingGraph component from frontend/src/components/trading.
- Updated home page to import Services component and TradingGraph from new path.
- Modified PortfolioPage to return null instead of PortfolioGrid.
- Added initial migrations for account, advertisement, commerce, configuration, downloader, gopay, stripe, trading212, and zasilkovna apps in the backend.
- Created Services component with subcomponents for Kinematografie, Drone Service, and Website Service.
- Implemented TradingGraph component with dynamic data generation and canvas rendering.
- Updated DonationShop component to display donation tiers with icons and descriptions.

backend/account/urls.py

@@ -16,7 +16,6 @@ urlpatterns = [
     # Registration & email endpoints
     path('register/', views.UserRegistrationViewSet.as_view({'post': 'create'}), name='register'),
     path('verify-email/<uidb64>/<token>/', views.EmailVerificationView.as_view(), name='verify-email'),
-    path('activate/', views.UserActivationViewSet.as_view(), name='activate-user'),
 
     # Password reset endpoints
     path('password-reset/', views.PasswordResetRequestView.as_view(), name='password-reset-request'),