The word"Highlight of the week","Top apps","Top scopes" are not translated to Simplified Chinese in Ubuntu store.

[freya zhang]

Information:
phablet@ubuntu-phablet:~$ system-image-cli -i
current build number: 326
device name: arale
channel: ubuntu-touch/rc-proposed/meizu.zh
last update: 2016-06-03 13:07:12
version version: 326
version ubuntu: 20160603
version device: 20160523-003fdb2
version custom: 20160504-975-22-7

Steps:
Launch app scope and enter Ubuntu store.Check the UI.

Actual result:
The word"Highlight of the week","Top apps","Top scopes" are not translated to Simplified Chinese.
Expected result:
The word"Highlight of the week","Top apps","Top scopes" should be translated.

[Víctor R. Ruiz (vrruiz)]

U1 team must support Simplified Chinese in the backend.

[James Tait (jamestait)]

I just checked in Click Index to make sure the Highlight translations have been imported there, and they have:

```
curl 'https://search.apps.ubuntu.com/api/v1' -H 'X-Ubuntu-Architecture: armhf' -H 'Accept-Language: zh-CN' | jq -C '._embedded["clickindex:highlight"]'
[
  {
    "_embedded": {
      "clickindex:package": [
        ...
      ]
    },
    "description": "",
    "_links": {
      "self": {
        "href": "https://search.apps.ubuntu.com/api/v1/highlights/app-of-the-week"
      }
    },
    "country_code": null,
    "slug": "app-of-the-week",
    "name": "本周热门"
  },
  {
    "_embedded": {
      "clickindex:package": [
        ...
      ]
    },
    "description": "",
    "_links": {
      "self": {
        "href": "https://search.apps.ubuntu.com/api/v1/highlights/essentials"
      }
    },
    "country_code": null,
    "slug": "essentials",
    "name": "必需品"
  },
  ...
]