feat: public method to close hidden modal window

[litvishko]

We need to add some public method to close hidden modal windows.

[adrigzr]

Hi @litvishko,

We think you can achieve the same result using the close method on the modal service:

this.modal.close('name', 'my-modal')

[litvishko]

Hi @litvishko,

We think you can achieve the same result using the close method on the modal service:

this.modal.close('name', 'my-modal')

Unfortunately, it is not so. There is an issue #44, the same problem I faced with.