Merge ~lgp171188/launchpad:launchpad-og-image-fix into launchpad:master

[Guruprasad]

Add a higher resolution image for og:image

[Guruprasad (lgp171188)]

The link preview/embed looks okay at https://iframely.com/embed/https%3A%2F%2Fbugs.dogfood.paddev.net%2Fbzr%2F%2Bbug%2F1815786

[Jürgen Gmach (jugmac00)]

review: Approve

[Colin Watson (cjwatson)]

review: Approve

diff --git a/lib/canonical/launchpad/images/launchpad-og-image.png b/lib/canonical/launchpad/images/launchpad-og-image.png
new file mode 100644
index 0000000..fb0f9c8
Binary files /dev/null and b/lib/canonical/launchpad/images/launchpad-og-image.png differ
diff --git a/lib/lp/app/templates/base-layout.pt b/lib/lp/app/templates/base-layout.pt
index 5e2d7a3..86b4ee9 100644
--- a/lib/lp/app/templates/base-layout.pt
+++ b/lib/lp/app/templates/base-layout.pt
@@ -62,7 +62,7 @@
         condition="python: getattr(view, 'show_opengraph_meta', True)">
       <meta property="og:title" tal:attributes="content view/fmt:pagetitle" />
       <meta property="og:type" content="website" />
-      <meta property="og:image" content="/@@/launchpad.png" />
+      <meta property="og:image" content="/@@/launchpad-og-image.png" />
       <meta property="og:url" tal:attributes="content python: view.recommended_canonical_url or request.URL" />
       <meta property="og:site_name" content="Launchpad" />
     </tal:opengraph>