[A11Y] Mise à jour du focus et correctif du footer (#635)

assets/sass/_theme/dependencies/leaflet.sass

 @import "leaflet/dist/leaflet"
+.map
+    .leaflet-marker-icon
+        &:focus,
+        &:focus-visible
+            outline-offset: 15px
+            outline-width: 3px
+            border-radius: 1px
\ No newline at end of file

assets/sass/_theme/design-system/footer.sass

@@ -11,6 +11,7 @@ footer#document-footer
         @extend %underline-on-hover
     .logo
         @extend %logo
+        display: block
         img
             height: $footer-logo-height
             max-width: 100%
@@ -48,6 +49,8 @@ footer#document-footer
             @include dropdown
             @include media-breakpoint-up(desktop)
                 --dropdown-border-color: transparent
+            button:focus-visible
+                border-radius: 3px
             
         @if $footer-icons-enabled
             &-social 

assets/sass/_theme/design-system/typography.sass

@@ -277,8 +277,9 @@ sup
         @include icon(check-line, after)
 
 *:focus-visible
+    border-radius: 3px
     outline-color: inherit
-    outline-offset: 5px
+    outline-offset: 8px
     outline-style: dashed
     outline-width: 1px