Fix: Enable TinyMCE Dropdown Interactions Inside Dialog Component #7776
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This PR resolves issue #7690, which caused TinyMCE dropdowns and popups to become unclickable when the editor was rendered inside a Dialog component.
fixes #7690
Fix Summary
Configured TinyMCE to append popups directly to document.body using append_to: document.body.
Applied a global CSS override to increase the z-index of TinyMCE UI elements, ensuring they appear above the Dialog’s overlay.
Impact
Only affects TinyMCE behavior inside Dialog components.
Does not interfere with other components, modals, or editor logic.
Tested
Verified that all TinyMCE dropdowns (font, size, format, etc.) are now accessible and selectable within dialogs.
Confirmed expected behavior across different screen sizes and layers.