minor #10679 Change channel code to name (AdamKasp)

This PR was merged into the 1.7-dev branch.

Discussion
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| Q               | A
| --------------- | -----
| Branch?         | master
| Bug fix?        | no
| New feature?    | no
| BC breaks?      | no
| Deprecations?   | no
| License         | MIT

To make channel fields consistent with the rest of the system, I changed channel code to channel name
<!--
 - Bug fixes must be submitted against the 1.4 or 1.5 branch (the lowest possible)
 - Features and deprecations must be submitted against the master branch
 - Make sure that the correct base branch is set
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![Screenshot 2019-09-18 at 15 36 21](https://user-images.githubusercontent.com/29897151/65153680-7a7ced80-da2a-11e9-9e4c-c922133ecc18.png)
![Screenshot 2019-09-18 at 15 36 35](https://user-images.githubusercontent.com/29897151/65153681-7a7ced80-da2a-11e9-99f2-0c862dba6b02.png)
![Screenshot 2019-09-18 at 15 36 45](https://user-images.githubusercontent.com/29897151/65153682-7a7ced80-da2a-11e9-83bf-1707fd5f0442.png)


Commits
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55d046d Change channel code to name

src/Sylius/Behat/Context/Ui/Admin/ManagingShipmentsContext.php

@@ -66,7 +66,7 @@ public function shipmentOfOrderShouldBe(
         ];
 
         if ($channel !== null) {
-            $parameters = ['channel' => $channel->getCode()];
+            $parameters = ['channel' => $channel->getName()];
         }
 
         Assert::true($this->indexPage->isSingleResourceOnPage($parameters));

src/Sylius/Bundle/AdminBundle/Resources/views/Order/Grid/Field/channel.html.twig

@@ -1 +1 @@
-<span class="ui small horizontal circular label" style="background-color: {{ data.color }}"></span> {{ data.code }}
+<span class="ui small horizontal circular label" style="background-color: {{ data.color }}"></span> {{ data.name }}