feat(out-of-support): make the message clearer (#234)

Also remove the link to the downloads page are it doesn't relate to the documentation but to the products themselves.
Here, we want to warn the reader about an outdated documentation content, not about its usage of an out-of support product.

src/partials/toolbar.hbs

@@ -41,14 +41,8 @@
 
   {{#if page.attributes.out-of-support}}
     <div class="paragraph message-block out-of-support-block">
-      <p>This documentation is about a version that is <b>out of support</b>, here is the <a
-        href="{{{relativize page.latest.url}}}">latest documentation
-        version</a>.
-      </p>
-      <p>
-        How about <a href="https://www.bonitasoft.com/downloads">downloading</a> a newer, supported
-        version?
-      </p>
+      <p>This documentation is for a version that is <b>out of support</b>.</p>
+      <p>You may want to view the same page for the <a href="{{{relativize page.latest.url}}}">latest version</a>, or for any of the versions available in the drop-down menu in the top-right corner.</p>
     </div>
   {{/if}}