Manual command always in upper case

[Jeredian]

Plugin Version

1.4.5

Cura Version

5.7.0

Platform

MacOS

Printer

Flying Ghost Bear 4

Reproduction steps

1. Send manual command "M30 1:/filename.gcode M20"
2. It will send "M30 1:/FILENAME.GCODE M20"

Actual results

File not removed

Expected results

File removed

Checklist of files to include

• [ ] Log file

Additional information & file uploads

We should try to convert the commands to uppercase because they may contain filenames