Radix Dialog wraps content in react-remove-scroll, which blocks wheel
events on portaled Popover content (rendered outside the Dialog DOM
tree). Add a disablePortal option to PopoverContent and use it for all
InlineEntitySelector instances inside NewIssueDialog so the Popover
stays in the Dialog's DOM tree and scrolling works.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>