Summary

On mobile browsers, tapping an option in a select2 enumeration dropdown inside an inplace field editor closed the floating panel before the selection could be saved. This fix keeps floating panels and the issue side panel open while a select2 dropdown is visible, and adds touch event handling for option selection.

Fixes OD-2830

Test plan

•  On iOS Safari, open an issue and edit a single-choice enumeration field (e.g. Priority)
•  Select a different value and verify it saves
•  Repeat on Firefox mobile
•  Verify desktop enumeration editing still works
•  Verify clicking outside still closes floating panels when select2 is not open