[Bug]: Prior-based default bounds results in poor Plot2d results

[BradyPlanden]

Python Version

3.12

Describe the bug

#338 added creation of default bounds from the prior when users don't define them during initial parameter class construction. As a result, Plot2d now displays this range when no bounds are provided. However, this can lead to poor visualizations since these bounds are based on a default multiplier of the mean prior value.

Steps to reproduce the behaviour

The current spm_MLE.py example showcases this problem quite well.

Relevant log output

No response