feat: support topmost.(windows&linux)

[wcb33]

trafficstars

#56 .

I don't have any apple device, so the mac is no implemented.

[prateekmedia]

@bitsdojo Any updates on this?

[bitsdojo]

@bitsdojo Any updates on this?

Yes, it is coming with the next update.

[longtimedeveloper]

@bitsdojo very much looking forward to the support topmost feature for desktops. Thank you in advance for supporting this.