Type of change(s)

• Bug fix
• Feature / enhancement
• Infrastructure / tooling (CI, build, deps, tests)
• Documentation

What changed and why

Added keep rules for MyKeyboard. The top small numbers were being stripped in release builds.

I thought I had fixed it in #212, but it was just my debug build where the numbers weren't stripped.

Tests performed

• Tested the top small numbers in different themes

Closes the following issue(s)

• Closes Top row doesn't show popup numbers anymore #100

Checklist

• I read the contribution guidelines.
• I manually tested my changes on device/emulator (if applicable).
• I updated the "Unreleased" section in CHANGELOG.md (if applicable).
• I have self-reviewed my pull request (no typos, formatting errors, etc.).
• All checks are passing.