Swipe-down-to-search keyboard should not show spell banner

[dylanhand]

Not sure this is within our control to fix, but worth a look.

Steps to reproduce

1. Disable dark mode
2. Swipe down or tap the search button toward the bottom of the home screen

Result

Keyboard shows a spell banner with black text, which is hard to read against the dark background.

Expected result

Either:

1. Display no spell banner (like Apple keyboard)
2. Use white text for spell banner so it's visible against dark background

Screenshots

Apple's keyboard:

Divvun keyboard: