feat: Configurable Header Logo Link and Footer Links

[j0mc]

Overview

This PR adds an optional link from the header logo to a configurable dashboard URL.
It also adds a configuration option to override the default links in the footer (Privacy Policy, Terms of Service, and Honor Code)

Test Steps

• Set following configuration options in .env.private:

DISABLE_APP_FOOTER=false
DISABLE_DESKTOP_HEADER=false
DISABLE_HEADER_LOGO=false
FOOTER_LINK_MAP='[{"label": "Test Link", "url": "https://wgu.edu/", "id": 1}]'
ENABLE_DASHBOARD_RETURN_LINK=true
DASHBOARD_BASE_URL='https://academy.test'

• Check that the only footer URL is now "Test Link" and links to the specified URL
• Check that the header links to https://academy.test/course/overview/

Checklist

⚠️ Please make sure to fill this checklist before asking for reviews.

• Code is correctly formatted and linted
• Unit tests are updated and are passing
• PR title follows conventional commits:
  i.e. feat(CUR-###): Feature title
• PR Title aligns to Semantic-Release supported prefixes (NOTE: prefixes are case sensitive, keep lower-case):

 feat() - Feature (0.X.0)
 fix() - Patch (0.0.X)
 docs() - Patch (0.0.X), will only scope to README changes
 refactor() - Patch (0.0.X)
 revert() - Patch (0.0.X)
 style() - Patch (0.0.X)

• Check for unused files
• Check work before asking for reviewers
• Fix any linting errors
• SECURITY: No secrets where committed to the repo
• COMPLIANCE: Committed code is not proprietary and adheres to Open Source licensing

[rodmgwgu]

LGTM, thanks!