Can move down into a hidden search widget in basic mode

[ClementTsang]

Describe the bug

A clear and concise description of what the bug is and what the expected behaviour was. If applicable, add screenshots to help explain your problem:

Even if search is hidden, you can move down into it in basic mode.

To reproduce

Steps on how to reproduce the behaviour:

1. btm -b
2. Move down in the process widget w/o opening search.

Platform

If relevant, please provide information on:

Operating System and Version:

Terminal:

Shell:

System Info:

Information about your system specifically (in case I have to replicate your system via VM):

• Total RAM:

• Total SWAP:

• CPU:

bottom version (use btm -V):

Additional context

If anything hasn't been covered by the above categories, state it down here: