fix(skins): ISSUE 1925 - black layout, but font logo on the top is blue. (#1926)

https://github.com/almasaeed2010/AdminLTE/issues/1925

build/less/skins/skin-black-light.less

@@ -41,7 +41,7 @@
         }
       }
     }
-    > .logo {
+    .logo {
       .logo-variant(#fff; #333);
       border-right: 1px solid @gray-lte;
       @media (max-width: @screen-header-collapse) {
@@ -62,4 +62,4 @@
   }
   //Create the sidebar skin
   .skin-light-sidebar(#fff);
-}
+}

build/less/skins/skin-black.less

@@ -40,7 +40,7 @@
         }
       }
     }
-    > .logo {
+    .logo {
       .logo-variant(#fff; #333);
       border-right: 1px solid #eee;
       @media (max-width: @screen-header-collapse) {