Air Theme

Customization Theme
544

Disable your custom component. Create a new test component in mobile CSS try this

.category-box-heading h3 {
//* You may need to uncomment the 2 lines below.
//      Overflow: unset !important;
//      Text-overflow: unset !important;
     text-wrap: balance !important;
}

I am pretty sure you will not need any other CSS modifications.

Just tested. Not working with my snippet either.