Fix websockets (#527)

pynecone/.templates/web/pcversion.txt

@@ -1 +1 @@
-0.1.15
+0.1.16

pynecone/config.py

@@ -42,7 +42,7 @@ class Config(Base):
     # Backend transport methods.
     backend_transports: Optional[
         constants.Transports
-    ] = constants.Transports.POLLING_WEBSOCKET
+    ] = constants.Transports.WEBSOCKET_POLLING
 
     # List of origins that are allowed to connect to the backend API.
     cors_allowed_origins: Optional[list] = [constants.CORS_ALLOWED_ORIGINS]