Thing page: Fix navbar style issue when handler not available

Signed-off-by: Florian Hotze <[email protected]>

bundles/org.openhab.ui/web/src/pages/settings/things/thing-details.vue

@@ -1,7 +1,7 @@
 <template>
   <f7-page @page:afterin="onPageAfterIn" @page:beforeout="onPageBeforeOut" class="thing-details-page">
     <f7-navbar :title="pageTitle + dirtyIndicator" back-link="Back" no-hairline>
-      <f7-nav-right v-show="!error && ready">
+      <f7-nav-right v-if="!error && ready">
         <f7-link v-if="!editable" icon-f7="lock_fill" icon-only tooltip="This Thing is not editable through the UI" />
         <f7-link v-else-if="$theme.md" icon-md="material:save" icon-only @click="save()" />
         <f7-link v-else @click="save()">