Forgot to remove font when deleting category

src/controller/KissCount.cpp

@@ -256,6 +256,7 @@ void KissCount::DeleteCategory(Category& category)
         if (_user->_categories[i].id == category.id)
         {
             _user->_categories.erase(_user->_categories.begin()+i);
+            _user->_categoriesFonts.erase(_user->_categoriesFonts.begin()+i);
             break;
         }
 }