feat(actions): add "When I clear local storage"

src/actions/index.ts

@@ -5,6 +5,7 @@ export * from './cookie';
 export * from './debug';
 export * from './double-click';
 export * from './go';
+export * from './local-storage';
 export * from './log';
 export * from './pause';
 export * from './reload';

src/actions/local-storage.ts

@@ -0,0 +1,40 @@
+import { When } from '@badeball/cypress-cucumber-preprocessor';
+
+/* eslint-disable tsdoc/syntax */
+/**
+ * When I clear local storage:
+ *
+ * ```gherkin
+ * When I clear local storage
+ * When I clear local storage {string}
+ * ```
+ *
+ * @example
+ *
+ * Clear all localStorage:
+ *
+ * ```gherkin
+ * When I clear local storage
+ * ```
+ *
+ * Clear localStorage with the key `appName`:
+ *
+ * ```gherkin
+ * When I clear local storage "appName"
+ * ```
+ *
+ * @remarks
+ *
+ * Clears [`localStorage`](https://developer.mozilla.org/docs/Web/API/Window/localStorage) data for current domain and subdomain.
+ *
+ * > Cypress automatically clears all local storage before each test to prevent state from being shared across tests when [test isolation](https://docs.cypress.io/guides/core-concepts/writing-and-organizing-tests#Test-Isolation) is enabled.
+ * >
+ * > You shouldn't need to use this command unless you're using it to clear localStorage inside a single test or test isolation is disabled.
+ */
+/* eslint-enable tsdoc/syntax */
+export function When_I_clear_local_storage(key?: string) {
+  cy.clearLocalStorage(key);
+}
+
+When('I clear local storage', When_I_clear_local_storage);
+When('I clear local storage {string}', When_I_clear_local_storage);