Prevent Formatting Toolbar from Showing Before Mouseup

[Aslam97]

Describe the bug
While selecting text, the formatting toolbar appears immediately before the mouseup event fires. This started happening after the introduction of isElementWithinEditorWrapper. It's also worth mentioning that restricting the event to event.button === 0 should prevent the toolbar from appearing.

Screen.Recording.2025-06-20.at.14.mp4