fakestripe popup for customer portal

[chase-moskal]

• [x] add customer portal button that makes popup appear
  • this probably needs to be a top-level web component like <xiome-store-customer-portal>
• [x] popup should have h1 saying fake customer portal
• [x] customer portal button should only appear when BOTH the user is logged in, and the stripe account is linked (StripeConnectStatus.Ready)

[chase-moskal]

• [x] bug: it's reporting that i am not logged in, even though i am already

[chase-moskal]

• is the user logged in? storeModel.get.is.userLoggedIn
• is the store in a ready state? storeModel.get.is.storeActive

const {userLoggedIn, storeActive} = storeModel.get.is
// ... render the correct slots

[chase-moskal]

if we want to render a loading spinner when either accessOp (user login) or connectStatusOp (stripe store status) is loading, we can do something like this:

const metaOp = ops.combine(
  storeModel.state.user.accessOp,
  storeModel.state.stripeConnect.connectStatusOp,
)
return renderOp(metaOp, () => html`
  <h3>Customer Portal</h3>
  <p>...</p>
`)