New container qsmxt 7.3.1

[vnm-neurodesk]

There is a new container by @astewartau, use this command to test on Neurodesk (either a local installation or https://play.neurodesk.org/):

bash /neurocommand/local/fetch_and_run.sh qsmxt 7.3.1 20250214

Or, for testing directly with Apptainer/Singularity:

curl -X GET https://neurocontainers.neurodesk.org/temporary-builds-new/qsmxt_7.3.1_20250214.simg -O
singularity shell qsmxt_7.3.1_20250214.simg

If test was successful, then add to apps.json to release:
https://github.com/NeuroDesk/neurocommand/edit/main/neurodesk/apps.json

Please close this issue when completed :)