Update index.d.ts

onToggleList function parameter added in index.d.ts file

Author: jaydeepk3

index.d.ts

@@ -43,6 +43,7 @@ export interface MultiSelectProps {
     fixedHeight?: boolean;
     hideTags?: boolean,
     canAddItems?: boolean;
+    onToggleList?: () => void;
     onAddItem?: (newItems: any[]) => void;
     onChangeInput?: (text: string) => void;
     displayKey?: string;