chore(build): try to build demo and docs (#3434)

platform/app/cypress/integration/OHIFPdfDisplay.spec.js

@@ -0,0 +1,13 @@
+describe('OHIF PDF Display', function() {
+  beforeEach(function() {
+    cy.openStudyInViewer('2.25.317377619501274872606137091638706705333');
+
+    cy.resetViewport().wait(50);
+  });
+
+  it('checks if series thumbnails are being displayed', function() {
+    cy.get('[data-cy="study-browser-thumbnail-no-image"]')
+      .its('length')
+      .should('be.gt', 0);
+  });
+});