The Khan calculator should not initiate a calculator-window-move when press-dragging a calculator button.

Resulting in a constantly 'moving around a bit' calculator window when, 1) clicking the buttons, and 2) when one is using a graphic-table instead of a mouse as input device.

Very distracting and annoying behavior in my view.

(on top of that the initiated window move quickly breaks (after N pixels drag), resulting in the calculator-window being glued to the cursor)

(tried to search for other potential related posts ... but the Zendesk's search feature is (still) utterly useless for that. On top of that its result pages all seem to think there page-1 ... whatever)