:wheelchair: Add aria labels for oscar buttons

Signed-off-by: mathieu.brunot <mathieu.brunot@monogramm.io>

searx/templates/oscar/search.html

@@ -3,9 +3,9 @@
   <div class="row">
     <div class="col-xs-12 col-md-8">
       <div class="input-group search-margin">
-        <input type="search" name="q" class="form-control" id="q" placeholder="{{ _('Search for...') }}" autocomplete="off" value="{{ q }}">
+        <input type="search" name="q" class="form-control" id="q" placeholder="{{ _('Search for...') }}" aria-label="{{ _('Search for...') }}" autocomplete="off" value="{{ q }}">
         <span class="input-group-btn">
-            <button type="submit" class="btn btn-default"><span class="hide_if_nojs">{{ icon('search') }}</span><span class="hidden active_if_nojs">{{ _('Start search') }}</span></button>
+            <button type="submit" class="btn btn-default" aria-label="{{ _('Start search') }}"><span class="hide_if_nojs">{{ icon('search') }}</span><span class="hidden active_if_nojs">{{ _('Start search') }}</span></button>
         </span>
       </div>
     </div>

searx/templates/oscar/search_full.html

@@ -6,9 +6,9 @@
     {% else %}
     <div class="input-group col-md-8 col-md-offset-2">
     {% endif %}
-        <input type="search" name="q" class="form-control input-lg autofocus" id="q" placeholder="{{ _('Search for...') }}" autocomplete="off" value="{{ q }}">
+        <input type="search" name="q" class="form-control input-lg autofocus" id="q" placeholder="{{ _('Search for...') }}" aria-label="{{ _('Search for...') }}" autocomplete="off" value="{{ q }}">
         <span class="input-group-btn">
-            <button type="submit" class="btn btn-default input-lg"><span class="hide_if_nojs">{{ icon('search') }}</span><span class="hidden active_if_nojs">{{ _('Start search') }}</span></button>
+            <button type="submit" class="btn btn-default input-lg" aria-label="{{ _('Start search') }}"><span class="hide_if_nojs">{{ icon('search') }}</span><span class="hidden active_if_nojs">{{ _('Start search') }}</span></button>
         </span>
     </div>
     <div class="col-md-8 col-md-offset-2  advanced">