- Add health UI bar to mortars (toggle for all mountables, sorry for stupid long import but this is cleaner than just adding it for mortars).
- Bump up culling distance on mortar mesh
- Disable smoke trail on mortar shells held in hand
- Add recoil animation on mortars to make recoil more intuitive
- Add `error_mortar_uneven_ground` toast to make it more obvious why you can't deploy a mortar