WebUI: Display alt-mode on weapons

[namidaka]

From crpg created by Yeldur: verdie-g#992

Is your feature request related to a problem? Please describe.
Website should display the alt-mode of weapons (throwables) in order to ensure people can see what damage the alternate-mode of their weapon does. To my knowledge this only affects throwables and a few 2h weapons such as Longsword + Wooden 2h sword

Describe the solution you'd like
Would be nice if there was a button you could click on to access an alternate weapon modes stats

Describe alternatives you've considered
See below

Additional context
Terribad drawing to illustrate one possible way to do this with a throwing axe, for example: