Explorer: add matching estimates to checkout on cart page

[michellema1208]

User Story:
As a donor
I want to know how much matching my donations will receive
So that I can visualize the power of quadratic funding

Acceptance Criteria

Empty State
GIVEN that I have no projects in my cart
WHEN I navigate to my Cart page
THEN I see a CTA to keep browsing

Passport is connected, score meets or is above default threshold (current threshold = 20)
GIVEN that I have one or more projects in my cart
WHEN I enter in donation amounts for every project
THEN I see matching estimates per project in green
AND I see my total Estimated match amount in the Summary box in green

GIVEN that I want to learn more about my estimated match
WHEN I hover over the tooltip next to "Estimated match" in the Summary box
THEN I see copy explaining how matching and QF work

GIVEN that I have successfully checked out projects
WHEN I look at the page
THEN I see a Thank You page with relevant stats (see Figma)
AND CTAs to share on Twitter, go back home, or View my Donation History page
AND I see donation and matching amount per round

Passport is not connected OR below default score threshold
GIVEN that I have one or more projects in my cart
WHEN I enter in donation amounts for every project
THEN I see matching estimates per project in orange
AND I see my potential Estimated match amount in the Summary box in green

GIVEN that I want to learn more about my potential match
WHEN I hover over the tooltip next to "Potential match" in the Summary box
THEN I see copy explaining how to actualize my donation matching

GIVEN that I have successfully checked out projects
WHEN I look at the page
THEN I see a Thank You page with relevant stats (see Figma)
AND CTAs to share on Twitter, go back home, or View my Donation History page
AND I see a "Want to supercharge your donation?" box which includes my potential match per round
AND a CTA to Open Passport

Product & Design Links:

• Figma

Tech Details:

Open Questions:

Notes/Assumptions:

• This includes writing test coverage for the functionality added in the ticket, if necessary