test: fix e2e tests + 500 error page

cypress/e2e/pages/500.cy.ts

@@ -1,11 +0,0 @@
-describe('Page /500', () => {
-  beforeEach(() => {
-    return cy.visit('/500', { failOnStatusCode: false })
-  })
-
-  it('should display the statusCode of 500', () => {
-    cy.get('[data-cy=status-code]').contains('500')
-  })
-})
-
-export {}