Completes #54, #175, #179 #217

[osteele]

Description

The client fetches account info from the server, and uses this to
control the presentation of elements that require auth.

Required

Changes must conform to these requirements:

• yarn test passes. All new and existing tests pass.
• yarn lint passes. All new code follows the code style of this project.

Aspirational

We don't yet require these, but they are nice to have:

• New code is covered by new or existing tests.
• Changed code is covered by new or existing tests.

[coveralls]

Pull Request Test Coverage Report for Build 312

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 34.473%

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Totals
Change from base Build 309:	0.0%
Covered Lines:	155
Relevant Lines:	443

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💛 - Coveralls