UI bug fixes

[TimCsaky]

• add visual indicator for focus on topnav and footer
• update primevue
• fix treetable expanded rows
• eslint fix for type error

NOTE: The BC Gov style guide requires color: #2378c7 for focus indicator
But the theme we are using in BCBox uses #a6d5fa for focus on all elements
Overriding this for all the primevue components seems to be a big task (they dont use variables for this)
So until we do that work.. we can either

1. keep consistent with primevue theme.
   OR
2. only have #2378c7 for our plain anchor elements
   I went for option 1

Description

Types of changes

Checklist

• I have read the CONTRIBUTING doc
• I have checked that unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments

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[codeclimate]

Code Climate has analyzed commit d6c3f34 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 0.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 24.5% (0.0% change).

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