Add draft warning to the void

Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>

layouts/thevoid/baseof.html

@@ -8,6 +8,11 @@
         {{- partial "header.html" . -}}
         <div class="container"><hr class="header-divider"></div>
         <main class="container">
+
+        {{- if .Draft -}}
+        {{- partial "warning.html" (i18n "postDraft") -}}
+        {{- end -}}
+
         {{- block "main" . }}{{- end }}
         </main>
         {{- block "after" . }}{{- end }}