refactor: Rename parameters for clarity in MPKitRokt methods

[thomson-t]

Instructions

1. PR target branch should be against development
2. PR title name should follow this format: https://github.com/mParticle/mparticle-workflows/blob/main/.github/workflows/pr-title-check.yml
3. PR branch prefix should follow this format: https://github.com/mParticle/mparticle-workflows/blob/main/.github/workflows/pr-branch-check-name.yml

Summary

• Updated method signatures and documentation to replace 'viewName' with 'identifier' and 'placements' with 'embeddedViews'

Testing Plan

• Was this tested locally? If not, explain why.
• {explain how this has been tested, and what, if any, additional testing should be done}

Reference Issue (For mParticle employees only. Ignore if you are an outside contributor)

• Closes SQDSDKS-7419

[BrandonStalnaker]

LGTM

[BrandonStalnaker]

corresponding core PR mParticle/mparticle-apple-sdk#368