Treat bar graph 'width' option as width of the bar itself

[#44616153]

Not as width of the most outer container (as it was earlier).
Also move labels to the left side of the bar graph (to fit Upstatement
design).

TODO: change 'width' to 'barWidth'. 'width' should be reserved for
options setting width of the most outer container. Also fix existing
interactives.