feat(assertions): add "Then I do not see local storage item"

src/assertions/local-storage.ts

@@ -7,7 +7,7 @@ import { Then } from '@badeball/cypress-cucumber-preprocessor';
  * Then I see local storage item {string}
  * ```
  *
- * Assert local storage item with key **_exists_**.
+ * Assert local storage item **_exists_**.
  *
  * @example
  *
@@ -22,3 +22,29 @@ export function Then_I_see_local_storage_item(key: string) {
 }
 
 Then('I see local storage item {string}', Then_I_see_local_storage_item);
+
+/**
+ * Then I do not see local storage item:
+ *
+ * ```gherkin
+ * Then I do not see local storage item {string}
+ * ```
+ *
+ * Assert local storage item **_does not exist_**.
+ *
+ * @example
+ *
+ * ```gherkin
+ * Then I do not see local storage item "key"
+ * ```
+ */
+export function Then_I_do_not_see_local_storage_item(key: string) {
+  cy.wrap({}).should(() => {
+    expect(localStorage.getItem(key)).to.not.exist;
+  });
+}
+
+Then(
+  'I do not see local storage item {string}',
+  Then_I_do_not_see_local_storage_item,
+);