ParaView Server state file should be saved with the correct extension

This issue was created automatically from an original Mantis Issue. Further discussion may take place here.

by default, a ParaView server state file should be saved with a .pvs extension. Currently, no extension is saved, unless the user types it in. The logic should check for the extension, and add it if necessary.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information