Legend misaligned with latest matplotlib

[jgieseler]

Until (at least) matplotlib version 3.5.3 the solarmach plot looks fine, but with the latest version (3.6.2), the figure is cropped a bit on the right side, resulting the legend to be cropped (and the logo being closer to the edge):

Don't know yet what has changed, but maybe it's a good moment to make the figure code a bit more "robust". And also tackle it together with Provide option to move the legend and logo (#24).

[jgieseler]

Because of this, for Solar-MACH the matlotlib version is fixed to 3.5.3 for now: https://github.com/jgieseler/Solar-MACH/blob/master/requirements.txt#L2

To fix it locally, install the working matplotlib version using pip install matplotlib==3.5.3

[jgieseler]

Interestingly, for the conda version, only matplotlib version 3.5.3 is installed, even so the version is not defined in the recipe. So there the problem doesn't occur so far.