[ENHANCEMENT] A visible GUI warning for job inputs
Is your feature request related to a problem? Please describe. Some inputs don't stop the users from running a calculation, but the results are not likely to be useful. We can point this out to users and highlight the entries that are likely to cause problems.
Describe the solution you'd like The main point of the warning mechanism is to inform the users that trajectories with variable unit cell dimensions are not supported by the code, and the results are likely to be wrong. The mechanism should be similar to the existing input error mechanism.
Describe alternatives you've considered We could block the execution completely for the questionable inputs, but this may stop users from running legitimate analysis.
Additional context This is related to the PR #634 which tries to reduce the noise in the results for NPT trajectories. While the changes there make the results slightly better, this is not the same as actually handling variable-cell trajectories correctly.
The long-term goal to support these trajectories correctly is described in #763