fix: remove mouseup capabilities to trigger modal close.

[dav1app]

Fix a bug that allow mouseup to behave as a click event on modals backdrop, since it is fired by mousedown inside a child component and mouseup inside a parent component, firing the click and closing the modal.

Summary

• Changes the default trigger from click to mousedown.left.
• Tests are working as expected, since click events are composed as both mousedown and mouseup events.
• I was unable to test event modifiers on vue-test-utils. No documentation about that and options doesn't work on beta-29.

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

Merging #1653 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1653   +/-   ##
========================================
  Coverage    59.95%   59.95%           
========================================
  Files          128      128           
  Lines         3049     3049           
  Branches       624      624           
========================================
  Hits          1828     1828           
  Misses        1028     1028           
  Partials       193      193

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 3384d72...a90b9f3. Read the comment docs.