Fix faulty test "saves a new variant"

Hypothesis: Broken test isolation in online mode leads to loading wrong scenario on reload

frontend/cypress/e2e/application.cy.js

@@ -535,7 +535,7 @@ describe('LCA Configuration Tests', () => {
             cy.get('div[id^="mapping"]').should('have.length', 0);
         });
 
-        it('saves a new variant', () => {
+        it.only('saves a new variant', () => {
             const newVariantName = 'NewVariant';
             cy.findByRole('textbox', { placeholder: /Variant Name/i }).type(newVariantName);
             cy.findByText('Add Driver Concretization').click();
@@ -550,6 +550,7 @@ describe('LCA Configuration Tests', () => {
             cy.get('input[id="variantFrequencyInput"').should('have.value', '15%');
             cy.visit('http://localhost:3000/'); // Click away to ensure data is actually saved and not just displayed
             cy.visit('http://localhost:3000/lcavariants');
+            cy.get('select').select(lcaTestScenarioData.scenarioName);
             cy.get('button.chakra-accordion__button').should('have.length', 1);
             cy.get('button.chakra-accordion__button').findByText(newVariantName).should('exist');
         });