Avoid generating empty previous link

Author: Simran-B

site/themes/arangodb-docs-theme/layouts/partials/content-footer.html

@@ -60,21 +60,17 @@
 
 
 <span class="prev">
-  {{ with $prev }}
-    {{- if eq (len .Ancestors) 1 }}
-      <a class="nav nav-prev link" href="" title="">
-      </a>
-    {{ else }}
-        <a class="nav nav-prev link" href="{{ .RelPermalink }}">
-          <i class="fas fa-chevron-left fa-fw"></i><p>{{.Params.menuTitle | markdownify }}</p></a>
-        {{- end}}
-  {{ end }}
-  
+{{- with $prev }}
+  {{- if ne (len .Ancestors) 1 }}
+    <a class="nav nav-prev link" href="{{ .RelPermalink }}">
+      <i class="fas fa-chevron-left fa-fw"></i><p>{{ .Params.menuTitle | markdownify }}</p></a>
+  {{- end}}
+{{- end }}
 </span>
 
 <span class="next">
-  {{ with $next }}
-            <a class="nav nav-next link" href="{{ .RelPermalink }}">
-              <p>{{.Params.menuTitle | markdownify }}</p><i class="fas fa-chevron-right fa-fw"></i></a>
-          {{- end }}
+{{- with $next }}
+  <a class="nav nav-next link" href="{{ .RelPermalink }}">
+    <p>{{ .Params.menuTitle | markdownify }}</p><i class="fas fa-chevron-right fa-fw"></i></a>
+{{- end }}
 </span>