fix accessibility link bugs

src/components/Autocomplete.vue

@@ -25,8 +25,8 @@
       >
       <template v-slot:append>
         <div v-if="!$parent.error && $parent.lang=='bm,nn'">
-        <a v-if="$parent.search_results.bm" href="#result0" class="accessibility_link" tabindex="0">Gå til treff i Bokmålsordboka</a>
-        <a v-if="$parent.search_results.nn" :href="'#result'+$parent.search_results.bm.length" class="accessibility_link" tabindex="0">Gå til treff i Nynorskordboka</a>
+        <a v-if="$parent.search_results.bm && $parent.search_results.bm.length > 0" href="#result0" class="accessibility_link" tabindex="0">Gå til treff i Bokmålsordboka</a>
+        <a :v-if="$parent.search_results.nn && $parent.search_results.nn.length > 0" :href="'#result'+($parent.search_results.bm? $parent.search_results.bm.length : 0)" class="accessibility_link" tabindex="0">Gå til treff i Nynorskordboka</a>
         </div>
         <div v-else>
           <a href="#result0" class="accessibility_link" tabindex="0">Gå til hovedinnhold</a>