features
- disable power devices with attribute "locked_while_printing" while printing
- add update notification icon
- add disk usage in gcode-files
- add preheat function in gcode-files context menu
- add customize feedrate for control panel
- add customize feedrate & distance to extruder panel
- hide additional sensors
- add speed (temperature_fan) to tempchart
bugfix
- remove ":" in ConnectingDialog
- esp32cam/ustreamer link fix bypassCache append (fixed #185)
- add vertical divider to improve button visuals in file editor
- colorpicker return object instead of string
- fix editing of existing presets after adding additional heater
- fixed order in console from preset gcode