Bug 22772: Menu link hover color incorrect in OPAC language choosers

This patch makes a few corrections to OPAC CSS to fix colors in the
language menus.

To test, apply the patch and rebuild the OPAC CSS.

- Enable multiple languages in the OPAC, including more than one
  language "variation" (fr-FR, fr-CA).
- Set the OpacLangSelectorMode preference to "both."
- In the OPAC, test the language menu in both the header and footer.
  When you hover over the sub-menu items the background should be green
  and the text color white.
- Perform the same test in the self checkout and self checkin
  interfaces.

Signed-off-by: Claire Gravely <claire.gravely@bsz-bw.de>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>

koha-tmpl/opac-tmpl/bootstrap/css/src/_common.scss

@@ -57,6 +57,16 @@ body {
         border-color: #FCF9FC;
         box-shadow: none;
 
+        ul {
+            &.dropdown-menu {
+                a {
+                    &:hover {
+                        color: #FFF;
+                    }
+                }
+            }
+        }
+
         li {
             > a {
                 color: #727272;
@@ -156,18 +166,25 @@ body {
     li {
         font-size: 85%;
 
+        a {
+            &:hover {
+                color: #85CA11;
+            }
+        }
+
         li {
             font-size: 100%;
 
             > a {
                 font-size: 100%;
-            }
 
                 &:hover {
                     color: #FFF;
                 }
             }
 
+        }
+
         a {
             color: $links;
         }