Improve visual layout in boxplots

[marinaevers]

The layout in boxplots is not very appealing because as a default, the distances are very wide which leads to large amounts of white space.

Example:

import uadapy.data as data
import uadapy.dr.uapca as uapca
import uadapy.plotting.plots1D as plots1D

distribs_hi = data.load_iris_normal()
distribs_lo = uapca(distribs_hi, dims=2)
fig, axs = plots1D.plot_1d_distribution(distribs_lo, 50, ['boxplot'], titles=["Dimension 1" ,"Dimension 2"])