Describe the bug
After Calibrating Pyciemss and getting a Loss Chart and Variable Chart, it is possible to add and remove Variable Charts, however, removing the last Variable Chart removes the ability to add a new chart
Expected behavior
It would be nice to add the last Variable Chart back in, or if that is not possible (due to data stuff), then the last one should not be deletable (or at least present a warning)
Screenshots
2 Charts
After Deleting the first
After Deleting the second
Describe the bug After Calibrating Pyciemss and getting a Loss Chart and Variable Chart, it is possible to add and remove Variable Charts, however, removing the last Variable Chart removes the ability to add a new chart
To Reproduce Steps to reproduce the behavior:
Expected behavior It would be nice to add the last Variable Chart back in, or if that is not possible (due to data stuff), then the last one should not be deletable (or at least present a warning)
Screenshots 2 Charts
After Deleting the first
After Deleting the second
![Screenshot 2024-06-20 at 2 09 52 PM](https://github.com/DARPA-ASKEM/terarium/assets/5182085/de3d31f4-aaac-4dfb-896d-83b9eae67cfe)