Correction des icônes sur iOS iphone 13 (#928)

assets/sass/_theme/utils/icons.sass

@@ -14,6 +14,7 @@
 
 @mixin icon($icon-name: '', $pseudo-element: before, $non-breaking: false)
     &::#{$pseudo-element}
+        content: map-get($icons, $icon-name)
         content: map-get($icons, $icon-name) #{/ ""} // Add ‘ / ""‘ to hide from screen reader
         font-family: 'Icon'
         font-style: normal