[BUG]Wrong export index.ts

[mebrahemi]

hi
export { default as DatePicker } from './calendar/date-picker';
export { default as RangePicker } from './calendar/date-picker'; // <------- must be export { default as RangePicker } from './calendar/range-picker'
...
becuase of this, RangePicker doesn't work.

[samsam-ahmadi]

Hi @mebrahemi, Yeah sorry about that, I had busy days and couldn't upgrade this package, But I will look at this and will fix the problems.

Thanks for your help and feel free to create PR.

[mebrahemi]

Thank you so much.