Describe the bug
iOS: Using accessibility text sizes, the inserter looses the column layout.
Android: The Media selector options on Image Blocks gets its layout broken.

To Reproduce
Steps to reproduce the behavior on iOS:

1. Activate one of the big accessibility text sizes on the OS system.
2. Open the block inserter.
3. Check that the layout is not right.

Steps to reproduce the behavior on Android:

1. Activate one of the big text sizes and a big display size on the OS system.
2. Add an image block.
3. Open the media selector as shown in the screenshot.
4. Check that the layout is not right.

Expected behavior
The layout should be as expected.

Not sure if this PR might be related to these issues: #1837

cc @lukewalczak @pinarol