* Update level.sass
Removing `margin-right: 0.75rem` from the `level is-mobile` in #1153 changed the spacing of icons used in the `level-items`. This pr restores the margin-right for the icon class only to restore the behavior as before while keeping changes made in #1153.
* Update level.sass
the margin for icons should be only for level is-mobile.
* Update level.sass
* add margin-right to level-item
* add margin to .level.is-mobile .level-item
made suggested changes