Add basic Cypress test

Author: tinuola

cypress/e2e/collectionFilmmakersList.cy.js

@@ -0,0 +1,10 @@
+// Currently exists only for LA Rebellion
+describe('Collection Filmmakers Listing Page', () => {
+  it('Visits the `L.A. Rebellion` Filmmakers Listing page', () => {
+    cy.visit('/collections/la-rebellion/filmmaker')
+    cy.getByData('breadcrumb').should('be.visible')
+    cy.getByData('page-heading').should('be.visible')
+    cy.getByData('page-listings').should('be.visible')
+    cy.percySnapshot('collectionFilmmakersListPage', { widths: [768, 992, 1200] })
+  })
+})

pages/collections/la-rebellion/filmmakers/index.vue

@@ -163,8 +163,12 @@ const pageClasses = computed(() => {
         :section-title="page.title"
         :section-summary="page.summary"
         theme="paleblue"
+        data-test="page-heading"
       >
-        <SectionStaffArticleList :items="parsedFilmmakerListings" />
+        <SectionStaffArticleList
+          :items="parsedFilmmakerListings"
+          data-test="page-listings"
+        />
 
         <SectionPagination
           v-if="