WIP: refactor pricing summary to reduce the need for comment

[johnduffell]

(Once we have confirmation from legal about the correct T&C we can fix this function to either say first 12 months or first year, and any other tweaks or changes)
(we can also make the threTierCard, topTierCheckoutPage, disclaimer all use the same function, meaning that if it's right one place it'll be right everywhere - apart from the thank you email)

[github-actions]

Deploy build 8827 of support::stripe-patrons-data to CODE

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• Deploy build 8827 of support::stripe-patrons-data to CODE
• Deploy parts of build 8827 to CODE by previewing it first
• What's on CODE right now?

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From guardian/actions-riff-raff.

[github-actions]

Size Change: -20 B (0%)

Total Size: 1.79 MB

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Filename	Size	Change
./public/compiled-assets/javascripts/ausMomentMap.js	108 kB	0 B
./public/compiled-assets/javascripts/contributionsRedirectStyles.js	20 B	0 B
./public/compiled-assets/javascripts/digitalSubscriptionLandingPage.js	217 kB	0 B
./public/compiled-assets/javascripts/downForMaintenancePage.js	68.4 kB	0 B
./public/compiled-assets/javascripts/error404Page.js	68.4 kB	0 B
./public/compiled-assets/javascripts/error500Page.js	68.3 kB	0 B
./public/compiled-assets/javascripts/favicons.js	616 B	0 B
./public/compiled-assets/javascripts/paperSubscriptionCheckoutPage.js	168 kB	0 B
./public/compiled-assets/javascripts/paperSubscriptionLandingPage.js	85.1 kB	0 B
./public/compiled-assets/javascripts/payPalErrorPage.js	66.9 kB	0 B
./public/compiled-assets/javascripts/payPalErrorPageStyles.js	20 B	0 B
./public/compiled-assets/javascripts/promotionTerms.js	71.6 kB	0 B
./public/compiled-assets/javascripts/subscriptionsLandingPage.js	70.7 kB	0 B
./public/compiled-assets/javascripts/subscriptionsRedemptionPage.js	125 kB	0 B
./public/compiled-assets/javascripts/supporterPlusLandingPage.js	276 kB	-20 B (0%)
./public/compiled-assets/javascripts/unsupportedBrowserStyles.js	20 B	0 B
./public/compiled-assets/javascripts/weeklySubscriptionCheckoutPage.js	186 kB	0 B
./public/compiled-assets/javascripts/weeklySubscriptionLandingPage.js	85.3 kB	0 B
./public/compiled-assets/webpack/385.js	81.8 kB	0 B
./public/compiled-assets/webpack/67.js	18.6 kB	0 B
./public/compiled-assets/webpack/735.js	2 kB	0 B
./public/compiled-assets/webpack/775.js	17.9 kB	0 B
./public/compiled-assets/webpack/991.js	2.16 kB	0 B

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