Billing / plus frontend (#2130)

* [wip] initial

* [wip] subscriptions/plus frontend

* [wip] finish payment flow

* Charges page

* finish most subscriptions work

* Finish

* update eslint

* Fix issues

* fix intl extract

* fix omorphia locale extract

* fix responsiveness

* fix lint

apps/frontend/tailwind.config.js

@@ -21,6 +21,10 @@ module.exports = {
         dark: "var(--color-text-dark)",
         inverted: "var(--color-text-inverted)",
         heading: "var(--color-heading)",
+        red: "var(--color-red)",
+        orange: "var(--color-orange)",
+        purple: "var(--color-purple)",
+        contrast: "var(--color-contrast)",
         bg: {
           DEFAULT: "var(--color-bg)",
           red: "var(--color-red-bg)",