fix issue #66 overlaying switch-language dropdown

Author: hypy13

django_daisy/templates/admin/parts/navbar.html

@@ -105,7 +105,7 @@
                 </div>
 
                 <div id="switch-language" tabindex="0"
-                     class="dropdown-content z-20 bg-base-200 text-base-content rounded-box top-px mt-16 max-h-[calc(100vh-10rem)] w-56 overflow-y-auto border border-white/5 shadow-2xl outline outline-1 outline-black/5">
+                     class="dropdown-content z-30 bg-base-200 text-base-content rounded-box top-px mt-16 max-h-[calc(100vh-10rem)] w-56 overflow-y-auto border border-white/5 shadow-2xl outline outline-1 outline-black/5">
                     <ul class="menu menu-sm gap-1"><!---->
                         {% get_current_language as LANGUAGE_CODE %}
                         {% get_available_languages as LANGUAGES %}