feat: Add basic cypress testing

Part-of: <https://dev.funkwhale.audio/funkwhale/funkwhale/-/merge_requests/1795>

front/cypress/e2e/favorite.cy.ts

@@ -0,0 +1,31 @@
+describe('Favorites', () => {
+  it('can be done from album list view', () => {
+    cy.login()
+
+    cy.visit('/')
+    cy.wait(4000)
+
+    cy.get('.item.collapse-button-wrapper').click()
+    cy.contains('Albums').click()
+
+    cy.get('.component-album-card').first().within(() => {
+      cy.get('a').first().click()
+    })
+
+    cy.get('.track-row.row').first().trigger('hover').within(() => {
+      cy.get('.favorite-icon').then(($favButton) => {
+        $favButton.click()
+        // In case everything worked the favorite button should be pink
+        cy.wrap($favButton).should('have.class', 'pink')
+
+      })
+
+      cy.get('.favorite-icon.pink').then(($unfavButton) => {
+        $unfavButton.click()
+        // In case everything worked the favorite button shouldn't be pink
+        // anymore
+        cy.wrap($unfavButton).should('not.have.class', 'pink')
+      })
+    })
+  })
+})