Integrated terminal find widget can overflow outside of integrated terminal

[mjbvz]

Testing #29479

Steps to Reproduce:

1. Open integrated terminal and open the find widget
2. Make the integrated terminal area very skinny

bug
The find widget starts overflowing into the explorer area:

[mjbvz]

After #30016, no more overflow but we now clip the find box:

[Tyriar]

I guess we want it to be tiny like in the editor: