(core) Hide tutorial card with templates

Summary: Hides the tutorial card if GRIST_HIDE_UI_ELEMENTS includes "templates".

Test Plan: Tested manually.

Reviewers: paulfitz

Reviewed By: paulfitz

Subscribers: paulfitz

Differential Revision: https://phab.getgrist.com/D3850

app/client/ui/TutorialCard.ts

@@ -12,6 +12,8 @@ interface Options {
 }
 
 export function buildTutorialCard(owner: IDisposableOwner, options: Options) {
+  if (shouldHideUiElement('templates')) { return null; }
+
   const {app} = options;
   const dismissed = app.dismissedPopup('tutorialFirstCard');
   owner.autoDispose(dismissed);