fix(navigation): icon left par defaut

Author: keryanS

src/component/navigation/index.scss

@@ -4,5 +4,6 @@
 ////
 
 @import '../link/index';
+@import '../button/index';
 
 @import '../../core/index';

src/component/navigation/style/module/_default.scss

@@ -70,6 +70,14 @@
       @include min-height(auto, lg);
     }
 
+    #{ns(nav__btn)} {
+      @include icon(arrow-down-s-line, sm, after) {
+        @include margin-left(2v);
+        @include margin-right(0);
+        transition: transform 0.3s;
+      }
+    }
+
     @include respond-from(lg) {
       position: initial;
       @include before(none);
@@ -83,6 +91,7 @@
 
   &__link,
   &__btn {
+    @include nest-btn(sm, left, null, null, false);
     @include size(100%);
     @include padding(3v 4v);
     @include text-style(md);
@@ -118,12 +127,6 @@
     flex-direction: row;
     @include padding(4v 3v 4v 4v, lg);
 
-    @include icon(arrow-down-s-line, sm, after) {
-      @include margin-left(2v);
-      @include margin-right(0);
-      transition: transform 0.3s;
-    }
-
     @include respond-from(lg) {
       justify-content: flex-start;
     }