fix(modal,dialog): prevent unintended close for modals/dialogs when selecting text

[tatems]

Describe the problem this PR addresses

When clicking and dragging to select text, if the user releases their cursor outside the modal/dialog window, the modal/dialog will close (specifically on Chrome). This is because the click event uses the hovered target on mouseup, which trips the closeOnClickOutside logic. On other browsers like Firefox, the target is the element hovered on mousedown.

Describe the changes in this PR

• Update @click.capture to @mousedown.capture for the modal/dialog layer components to trigger the closeOnClickOutside logic.

Other information

[tatems]

Still need to test on mobile

[github-actions]

Deployed Styleguide and Lab.

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