Incorrect type of onTextChange event emitter

[Lukáš Matta]

Hello,
currently onTextChange event emitter has generic type TagModel (which is superset of a string type) but string on its own would be sufficient. We only emit value of text input, which is always of string type.

ngx-chips/modules/components/tag-input/tag-input.ts

Line 270 in 8e34983

 @Output() public onTextChange = new EventEmitter<TagModel>();