Add IntelliJ IDEA project configuration files

This commit adds IntelliJ IDEA-specific configuration files for the project, including module setup, version control integration, inspection profiles, and workspace settings. These files facilitate development environment configuration for contributors using IntelliJ IDEA.

booking/urls.py

@@ -0,0 +1,7 @@
+from django.urls import path
+
+from booking.views import CreateBookingView
+
+urlpatterns = [
+    path('client/', CreateBookingView.as_view(), name='client_booking'),
+]