Remove user's font cache
This works around the slow startup issues that people have seen with qt5 applications installed via conda.
Refs https://code.ornl.gov/sns-hfir-scse/diffraction/powder/powder-diffraction/-/issues/452
During the maintenance period on Monday, 14 Oct 2024, all new projects will no longer create a container registry as part of the project area. Already existing projects will be unaffected at this time. Instead, users should utilize the official ORNL container registries at camden.ornl.gov (internal/moderate) and savannah.ornl.gov (external/low). Please see ORNL Today article for more info.
This works around the slow startup issues that people have seen with qt5 applications installed via conda.
Refs https://code.ornl.gov/sns-hfir-scse/diffraction/powder/powder-diffraction/-/issues/452