[Feature Request] Collapsable groups for Macros.

[thelastWallE]

Also create colapsible user defined classes will be nice. So users can have more macro buttons in the same space. Like "Tests", "Calibration", etc

Originally posted by @SinisterRj in https://github.com/thelastWallE/OctoprintKlipperPlugin/issues/92#issuecomment-1440116726