Cascading URL Params merge

[AdityaHegde]

INSERT DESCRIPTION HERE

Checklist:

• Covered by tests
• Ran it and it works as intended
• Reviewed the diff before requesting a review
• Checked for unhandled edge cases
• Linked the issues it closes
• Checked if the docs need to be updated
• Intend to cherry-pick into the release branch
• I'm proud of this work!

[AdityaHegde]

The new planned approach is very different by merging explore state types instead.