message: Fix type of `Configuration.handleKeys`
diff: @@ -209,7 +209,7 @@ class Configuration implements IConfiguration {
  this.operatorPendingModeKeyBindingsMap = new Map<string, IKeyRemapping>();
  }
  - handleKeys: IHandleKeys[] = [];
  + handleKeys: IHandleKeys = {};
  useSystemClipboard = false;
  