ignore onClick logOut when calculating code coverage

[pdurbin]

What this PR does / why we need it:

Ignores the following line when calculating code coverage:

Which issue(s) this PR closes:

None. Relates to:

• Improve component/unit tests "Branches" coverage #866

Special notes for your reviewer:

If we can write a test to exercise logOut, that would probably be better.

Suggestions on how to test this:

Interact with the header.

Does this PR introduce a user interface change? If mockups are available, please link/include them here:

No.

Is there a release notes or changelog update needed for this change?:

No.

Additional documentation:

None.

[coveralls]

coverage: 97.232% (+0.08%) from 97.156%
when pulling f314d3f on ignore-logout-for-code-coverage
into 905d610 on develop.

[pdurbin]

If we can write a test to exercise logOut, that would probably be better.

I spoke with @g-saracca and he's pretty sure we can write such a test. If we come up with a better way to cover this line instead of ignoring it, please feel free to close this PR! 😅

[g-saracca]

@pdurbin PR to improve coverage ready here.
This is the line covering this logout case for example.

[pdurbin]

@g-saracca fantastic! Closing!