Standardize chart type bar and column

[Benjamin]

i realised the width of the width get change when the number of category changes.

example the bar width get bigger when category get lesser.

for column, the chart get center align.

 

what i wanted

for column type chart, to be left align when there is only 1 category

for bar type chart, to be top align when there is only 1 category

for all chart type, the width of the series item to be same irregardless of the number of category