Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Page or post
2. Add a shortcode block
3. type a multiline shortcode
4. See error

Expected behavior
TextInput should grow with its content.

Screenshots

Smartphone (please complete the following information):

• Device: Pixel 3a
• OS: Android X
• Version 28, 29

Additional context
This issue was introduced as a part of #1808 specifically for the workaround here https://github.com/WordPress/gutenberg/pull/19848/files#diff-7232ee72926f10a0aad2ee0c3bfb6612R46