Visual fix: make sensitivty ratio plot same width as sensitivity

From a comment/complaint from a user.

A good solution would be to put the energy resolution and energy-resolution ratio (which isn't even plotted), energy bias and energy bias ratio, below angular resolution, something like:

mosaic = """
SSSSSSSAAaa
SSSSSSSBBbb
SSSSSSSRRrr
sssssssEEee
sssssssIIii
"""
_ = plt.subplot_mosaic(mosaic=mosaic, constrained_layout=True, sharex=True)

Or even

mosaic = """
SSSSSSSSSAABB
SSSSSSSSSAABB
SSSSSSSSSaabb
SSSSSSSSSRREE
SSSSSSSSSRREE
SSSSSSSSSrree
sssssssssIIJJ
sssssssssIIJJ
sssssssssiijj
"""
_ = plt.subplot_mosaic(mosaic=mosaic, constrained_layout=True, sharex=True)

With tghe ratio plots undernethe the relevant metrics, and collapsing the space between them (have to see how to do that with subplot_mosaic)