[design] improve menu layout

Author: zombieFox

src/html/menu/content/bookmarks/accent.html

@@ -77,7 +77,6 @@ <h1 class="menu-item-header-text">Accent override</h1>
 </div>
 </div>
 </div>
-<hr>
 <divclass="form-wrap">
 <divclass="form-inline">
 <buttonclass="control-link-item-accent-apply button button-line" tabindex="-1">Apply to all</button>

src/html/menu/content/bookmarks/color.html

@@ -77,7 +77,6 @@ <h1 class="menu-item-header-text">Colour override</h1>
 </div>
 </div>
 </div>
-<hr>
 <divclass="form-wrap">
 <divclass="form-inline">
 <buttonclass="control-link-item-color-apply button button-line" tabindex="-1">Apply to all</button>