fix(core.js): ignore composition text input events

Ignore events triggered while composing text with an input method editor. Fixes up buggy behavior
with some IMEs resulting in incorrect cursor placement or duplicated inputs while updating the input
with a masked value.

Author: scott-vanbrug

src/core.js

@@ -57,7 +57,7 @@ export function inputHandler(event) {
   const { target, detail } = event
 
   // We dont need to run this method on the event we emit (prevent event loop)
-  if (detail && detail.facade) {
+  if ((detail && detail.facade) || event.inputType === 'insertCompositionText') {
     return false
   }