Add new rotationalio page links to footer

[daniellemaxwell]

Scope of changes

Adds links in the footer to the following pages:

• Ensign Pricing
• Ensign U
• Resources

Fixes SC-22997

Type of change

• new feature
• bug fix
• documentation
• testing
• technical debt
• other (describe)

Acceptance criteria

https://www.awesomescreenshot.com/image/44885228?key=d907f61181028bec6cd0361b69574a86

Definition of Done

• I have manually tested the change running it locally (having rebuilt all containers) or via unit tests
• I have added unit and/or integration tests that cover my changes
• I have added new test fixtures as needed to support added tests
• I have updated the dependencies list if necessary (including updating yarn.lock and/or go.sum)
• I have recompiled and included new protocol buffers to reflect changes I made if necessary
• Check this box if a reviewer can merge this pull request after approval (leave it unchecked if you want to do it yourself)
• I have notified the reviewer via Shortcut or Slack that this is ready for review
• Front-end: Checked sm, md, lg screen resolutions for effective responsiveness
• Backend-end: Documented service configuration changes or created related devops stories

Reviewer(s) checklist

• Front-end: I've reviewed the Figma design and confirmed that changes match the spec.
• Any new user-facing content that has been added for this PR has been QA'ed to ensure correct grammar, spelling, and understandability.
• Are there any TODOs in this PR that should be turned into stories?

[shortcut-integration]

This pull request has been linked to Shortcut Story #22997: Update Beacon footer.

[daniellemaxwell]

Documentation looked really long after adding Pricing. Shortening the word to Docs makes it more in line with the others and it's common to see Docs used on other sites.

[pdeziel]

Looks good, thanks for updating the links!