Need feedback on chem dispenser tgui

[ThePotato]

I'm not sure on the icons for the states of matter solid/liquid/gas we can use any icons from here:
https://fontawesome.com/icons?d=gallery&m=free

The bar at the bottom is a visualization of the current contents of the vessel.


By default it's on most to least, density lists solid>liquid>gas, order added lists the order the reagents were added to the vessel.

Reagent groups still work the same using the same popup for inserting reagents then a name.