Fix javascript error - 2 extra closing brackets in _onPreConnect

Code was not valid due to extra closing brackets.

Removed extra ")", run code and tested.

Author: sponno

src/Typed/doc/index.rst

@@ -108,10 +108,10 @@ Stimulus controller:
             console.log(event.detail.options); // Options that will be used to initialize Typed
             event.detail.options.onBegin = (typed) => {
                 console.log("Typed is ready to type cool messages!");
-            });
+            };
             event.detail.options.onStop = (typed) => {
                 console.log("OK. Enough is enough.");
-            });
+            };
         }
 
         _onConnect(event) {