Describe the bug
I can't select custom layouts. My file app opens, but all files are grayed out and not selectable. I am not sure which format I need to use for custom layouts. I tried json and yaml.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Layouts'
2. Click on 'Select layout file from Device'
3. File app opens
4. Cant select any files, because they are grayed out.

Expected behavior
I would expect yaml or json files to be selectable. Maybe an in app hint about which formats are supported would be helpful.

Smartphone (please complete the following information):

• Device: Google Pixel 6
• OS: Android 15