Filament Type Not Set

[agreenbhm]

On the Android app (haven't tested with iOS), the values for the "tray_type", ie the filament type (PETG, PLA, etc) are set as lowercase rather than uppercase. This results in the printer not actually setting the filament type when the tag is scanned, though the slot label displays the lowercase value that was given. This differs from the web server on the OpenSpool device where it is set as uppercase and results in the filament type being properly set.

Environment: Bambu X1C
Version: OpenSpool Mobile v1.3

To reproduce:

1. Write a tag from the Android app with PLA and any other settings.
2. Scan the tag.
3. Observe the label on the printer displaying the filament type in lowercase letters.
4. Edit the settings of that filament slot on the printer.
5. Observe the filamenty type being set to "Material".

For comparison:
Either perform the same steps as above but writing the tag with the OpenSpool web server instead of the mobile app, or manually send an MQTT publish request with the filament type in upper-case. Observe that it is properly configured on the printer.

[spuder]

This should be fixed in #35
Testing pending

[agreenbhm]

Awesome, thanks for the quick turnaround!