update e2e tests for settings initialization

src-ui/cypress/integration/documents-list.spec.ts

@@ -3,6 +3,9 @@ describe('documents-list', () => {
     this.bulkEdits = {}
 
     // mock API methods
+    cy.intercept('http://localhost:8000/api/frontend_settings/', {
+      fixture: 'frontend_settings/settings.json',
+    })
     cy.fixture('documents/documents.json').then((documentsJson) => {
       // bulk edit
       cy.intercept(