Removed unnecessary <template> element

Vue.js uses `<template>` when we don't want to output an element but still
want to set some attributes (like `v-if`) on a piece of text. Since we're
outputting a `<span>`, we can just move the attributes there.

src/scripts/js/es6/common/vuecomponents/breadcrumbs/Breadcrumbs.js

@@ -3,7 +3,7 @@ const TEMPLATE = `
     <ul>
         <li v-for="crumb in breadcrumbs">
             <a :href="crumb.url" v-if="!crumb._self" @click.prevent="navigateToNode(crumb._id)">{{ crumb.name }}</a>
-            <template v-else><span>{{ crumb.name }}</span></template>
+            <span v-else>{{ crumb.name }}</span>
         </li>
     </ul>
 </div>