Suggestions about the node search box.

https://github.com/comfyanonymous/ComfyUI/assets/131615326/c0026c40-580f-47f8-9b8e-53a603c3f3c2

Based on the situation shown in the video, when the mouse leaves the scope of the node search box, it disappears automatically. However, for Chinese users, there is a serious problem, and this might caused node search box to disappear when Chinese users try to input Chinese using Chinese input method,due to the checkbox pop-up from the Chinese input method, which puts the mouse cursor above the checkbox of the Chinese input method. Therefore, I suggest that the node search box should be cancelled by clicking when the mouse is outside the node search box range. Instead of automatically canceling the node search box when the mouse leaves the node search box.