change color-navbar

src/client/styles/scss/theme/island.scss

@@ -2,7 +2,7 @@
 @import '../override-bootstrap-variables';
 
 $color-themelight: rgba(183, 226, 219, 1);
-$color-navbar: #0c2a44;
+$color-navbar: #0d3955;
 $color-global: #3c6d72;
 $color-link-global: $color-global;
 $dark: darken($color-global, 5%);