Bugfix for InferencerPlotter in 1D

[jsilter]

outvar is a dict so need to select the appropriate key.

Modulus Pull Request

Description

Currently InferencerPlotter doesn't function for 1D data. It throws an error because the outvar dictionary is missing a key lookup and tries to index the data array, which obviously doesn't work. This PR corrects that issue.

Checklist

• [X] I am familiar with the Contributing Guidelines.
• [ ] New or existing tests cover these changes.
• [X] The documentation is up to date with these changes.
• [ ] The CHANGELOG.md is up to date with these changes.
• [ ] An issue is linked to this pull request.

Dependencies

No dependencies