(core) New URL that opens Create site popup.

Summary: Adding new url parameter for team site creation

Test Plan: Updated tests.

Reviewers: georgegevoian

Reviewed By: georgegevoian

Differential Revision: https://phab.getgrist.com/D3554

app/client/ui/BillingPage.ts

@@ -10,7 +10,7 @@ import {BillingPlanManagers} from 'app/client/ui/BillingPlanManagers';
 import {createForbiddenPage} from 'app/client/ui/errorPages';
 import {leftPanelBasic} from 'app/client/ui/LeftPanelCommon';
 import {pagePanels} from 'app/client/ui/PagePanels';
-import {showTeamUpgradeConfirmation} from 'app/client/ui/ProductUpgrades';
+import {NEW_DEAL, showTeamUpgradeConfirmation} from 'app/client/ui/ProductUpgrades';
 import {createTopBarHome} from 'app/client/ui/TopBar';
 import {cssBreadcrumbs, cssBreadcrumbsLink, separator} from 'app/client/ui2018/breadcrumbs';
 import {bigBasicButton, bigBasicButtonLink, bigPrimaryButton} from 'app/client/ui2018/buttons';
@@ -273,8 +273,8 @@ export class BillingPage extends Disposable {
           !canManage ? null :
             makeActionLink('Manage billing', 'Settings', this._model.getCustomerPortalUrl(), testId('portal-link')),
           !wasTeam ? null :
-          makeActionButton('Downgrade plan', 'Settings',
-            () => this._confirmDowngradeToTeamFree(), testId('downgrade-free-link')),
+          dom.maybe(NEW_DEAL(), () => makeActionButton('Downgrade plan', 'Settings',
+            () => this._confirmDowngradeToTeamFree(), testId('downgrade-free-link'))),
           !canRenew ? null :
             makeActionLink('Renew subscription', 'Settings', this._model.renewPlan(), testId('renew-link')),
           !canUpgrade ? null :

app/client/ui/ProductUpgradesStub.ts

@@ -4,6 +4,7 @@ import {Disposable, DomContents, IDisposableOwner, Observable, observable} from
 
 export function buildNewSiteModal(context: Disposable, options: {
   planName: string,
+  selectedPlan?: string,
   onCreate?: () => void
 }) {
   window.location.href = commonUrls.plans;