Merge pull request #2806 from setoyama60jp/fix-#2716-brokenness-in-nav-bar

fix for issue #2716 (brokenness in nav bar in にほんご language)

src/components/menu-bar/menu-bar.css

@@ -66,6 +66,7 @@
     align-self: center;
     position: relative;
     align-items: center;
+    white-space: nowrap;
     height: $menu-bar-height;
 }