Confirm pickup changes before proceeding in reservation details test

This makes the test more understandable. The only reason it has passed
up until now is that the elements have been available under the modal.

src/apps/reservation-list/modal/reservation-details/reservation-details.test.ts

@@ -480,6 +480,11 @@ describe("Reservation details modal", () => {
       "DK-775120"
     );
 
+    // ID 13 2.f.ii. the link "apply changes"
+    cy.getBySel("reservation-form-button").should("exist").click();
+
+    cy.getBySel("modal-cta-button").should("be.be.visible").click();
+
     // ID 13 2.f. header "Not interested after"
     cy.getBySel("reservation-form-list-item")
       .eq(2)
@@ -492,11 +497,6 @@ describe("Reservation details modal", () => {
       .find(".text-small-caption")
       .should("contain.text", "21-09-2022");
 
-    // ID 13 2.f.ii. the link "apply changes"
-    cy.getBySel("reservation-form-button").should("exist").click();
-
-    cy.getBySel("modal-cta-button").should("be.be.visible").click();
-
     // ID 15 2.a&b&c&d&e Dropdown with interest periods
     cy.getBySel("reservation-form-list-item")
       .eq(2)