update RX_BUILD_BACKEND (#1783)

Author: adhami3310

pcweb/constants.py

@@ -79,8 +79,7 @@
 REFLEX_ASSETS_CDN = "https://web.reflex-assets.dev/"
 
 # Reflex Cloud Backend
-RX_CLOUD_BACKEND = os.getenv("RX_CLOUD_BACKEND", "https://cloud-backend.reflex.dev/")
-RX_BUILD_BACKEND = os.getenv("RX_BUILD_BACKEND", "https://build-backend.reflex.dev/")
+RX_BUILD_BACKEND = os.getenv("RX_BUILD_BACKEND", "https://build.reflex.dev/api/")
 
 # Stats
 GITHUB_STARS = 28000