Fix: profile indicator could not retrieve number of posts

A change has been made by Google to the Community Console API, and now
the ViewUser method doesn't return the user activity summary (the
number of posts/answers count aggregated by month) if it is not
explicitly set via JSONBody[1][4][20] = true (this is the
'ViewUser.ViewOptions.withUserActivity' field).

This change adds this field to the ViewUser request so the profile
indicator continues to work.

Change-Id: I132d79d3651cee26c09bc47bd5f0f95446d25419
diff --git a/src/injections/profileindicator_inject.js b/src/injections/profileindicator_inject.js
index 352e3ca..0af5539 100644
--- a/src/injections/profileindicator_inject.js
+++ b/src/injections/profileindicator_inject.js
@@ -80,6 +80,9 @@
     '1': userId,
     '2': 0,
     '3': forumId,
+    '4': {
+      '20': true,
+    },
   });
 }