fix(android): default Ti.Ui.TextField.editable is true in #focus() (#11405)

If the proxy doesn't have an explicit value set for editable, assume true by default Fixes TIMOB-27694

Author: sgtcoolguy

android/modules/ui/src/java/ti/modules/titanium/ui/widget/TiUIText.java

@@ -497,7 +497,7 @@ public void focus()
  {
 super.focus();
 if (tv != null && proxy != null && proxy.getProperties() != null) {
-finalbooleaneditable = proxy.getProperties().optBoolean(TiC.PROPERTY_EDITABLE, false);
+finalbooleaneditable = proxy.getProperties().optBoolean(TiC.PROPERTY_EDITABLE, true);
 TiUIHelper.showSoftKeyboard(tv, editable);
  }
  }