Describe the bug

The longpress popup should be a single row of three keys in this example. However, it is showing on two rows.

To Reproduce

1. Using Keyman Developer Server, test Khmer Angkor on iPhone
2. Long press almost any key
3. See error

KeymanWeb:

• OS: Windows 10
• Browser: Chrome 99
• KeymanWeb Version: 15.0.206-beta