add debugging errors on live_debugger while in dev mode

Author: GuzekAlan

config/config.exs

@@ -47,6 +47,8 @@ if config_env() == :dev do
       ]
     ]
 
+  config :live_debugger, LiveDebuggerWeb.Endpoint, debug_errors: true
+
   config :live_debugger, experimental_features: :all
 end