change divs to spans to be more Valid™

resources/views/layouts/nav-buttons.blade.php

@@ -20,12 +20,12 @@ $aclass = $dropdown ? 'dropdown-item' : 'nav-link';
   <form method="POST" action="{{ route('toggle-dark-mode') }}" aria-hidden="true">
     @csrf
     <button id="toggle-dark-mode-btn" class="btn-link border-0 {{ $aclass }}" type="submit" onclick="event.preventDefault(); toggleDarkMode();">
-        <div class="dark-mode-switch-on">
+        <span class="dark-mode-switch-on">
             <i class="fa-sun-o fa-pr"></i>{{ __('Light Mode') }}
-        </div>
+        </span>
-        <div class="dark-mode-switch-off">
+        <span class="dark-mode-switch-off">
             <i class="fa-moon-o fa-pr"></i>{{ __('Dark Mode') }}
-        </div>
+        </span>
     </button>
   </form>