Investigate adding conversion values to links on the units and conversion graphics

[rchagolla]

Is your feature request related to a problem? Please describe.

Currently, the user cannot see the conversion values between units on the graphics page.

Describe the solution you'd like

Investigate if adding conversion values to the links of the graphics is possible and if it is a beneficial addition to the graphic.

Describe alternatives you've considered

If adding the conversion values is not beneficial, investigate if coloring links can be possible and beneficial to the graphic.

Additional context