OH - entity small letters for OH items in latest beta release #308

Describe the bug

When you want to add the brightness of a light Entity of an openHAB item with capital letters. I need to type it in small letters and I can’t select it out of the preselect list.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Rooms’
2. Click on 'No entity set'
3. Click on 'Add light'
4. Type in the ‘OH item’s name’
5. See error

Expected behavior
The field of the Brightness in the Entity should be capable to work with the capital letters, and selectable out of the list

Screenshots
See screenshot in attachment

Environment info (please complete the following information):

• Openhab user
• Browser [safari]
• NSPanelManager version [2.0.8-beta]
• NSPanel Firmware version [0.3.613]