RN-152 Updated createGroupChannel's return value to match createDirectChannel (#7027)

* RN-152 Updated createGroupChannel's return value to match createDirectChannel

* Fixed handling of results from createDirectChannel

* Updated yarn.lock

webapp/yarn.lock

@@ -5004,7 +5004,7 @@ math-expression-evaluator@^1.2.14:
 
 mattermost-redux@mattermost/mattermost-redux#master:
   version "0.0.1"
-  resolved "https://codeload.github.com/mattermost/mattermost-redux/tar.gz/f8d106e6fde0d8633bf5d13c1ca1aaec61b0b8bb"
+  resolved "https://codeload.github.com/mattermost/mattermost-redux/tar.gz/9797cb8bd8fa61252336a7c6150bd364f7ca28b1"
   dependencies:
     deep-equal "1.0.1"
     harmony-reflect "1.5.1"