System Settings does not show free space on storage card.

[Gregory Opera]

When one accesses the "Storage" information in System Settings, no information is shown regarding the status of removable storage.

Not only would it make sense to include the status of removable storage on this screen (particularly since System Settings is a compulsory part of the operating system), but there appears to be no other way in which to learn the status of removable storage at this time.

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Reproduce:
- Insert or connect removable storage that is compatible with a Ubuntu (Touch) mobile device, ensuring that said removable storage has at least some content contained on it.
- Access the "storage" information for Ubuntu (Touch): Apps Scope-->System Settings-->About-->Storage

Result:
- Only the status of internal (built-in) storage is shown.

Expectation:
- That Ubuntu (Touch) shows storage status for both internal AND external storage, either on the same screen or with a toggle of some kind.

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bq Aquaris E5 HD Ubuntu Edition:
* OS build number: OTA-12
* Ubuntu Image part: 20160708
* Ubuntu build description: Ubuntu 15.04 - armhf (20160708-091336)
* Device Image part: 20160606-540a47f
* Device build description: VEGETA01A-S23A_BQ_L100EN_2014_160708
* Customization Image part: 20160701-981-38-14

[Gregory Opera (gregoryopera)]

This issue is still present in OTA-13...

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bq Aquaris E5 HD Ubuntu Edition:
* OS build number: OTA-13
* Ubuntu Image part: 20160913
* Ubuntu build description: Ubuntu 15.04 - armhf (20160913-023544)
* Device Image part: 20160606-540a47f
* Device build description: VEGETA01A-S23A_BQ_L100EN_2015_160913
* Customization Image part: 20160831-991-38-18