feat(explore): Move chart actions into dropdown (#19446)

* feat(explore): Move chart actions to a dropdown menu

* Fix tests and add some new ones

* Add background color to embed code button

* Fix cypress tests

* Move copy permalink to actions menu

* Remove unused function

* Move share by email above embed code

* Fix test

* Fix test

* Fix test

* Fix test

* Fix test

superset-frontend/src/explore/components/EmbedCodeContent.test.jsx

@@ -0,0 +1,48 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import React from 'react';
+import fetchMock from 'fetch-mock';
+import { render, screen } from 'spec/helpers/testing-library';
+import EmbedCodeContent from 'src/explore/components/EmbedCodeContent';
+
+const url = 'http://localhost/explore/p/100';
+fetchMock.post('glob:*/api/v1/explore/permalink', { url });
+
+describe('EmbedCodeButton', () => {
+  it('renders', () => {
+    expect(React.isValidElement(<EmbedCodeContent />)).toBe(true);
+  });
+
+  it('returns correct embed code', async () => {
+    render(<EmbedCodeContent />, { useRedux: true });
+    expect(await screen.findByText('iframe', { exact: false })).toBeVisible();
+    expect(await screen.findByText('/iframe', { exact: false })).toBeVisible();
+    expect(
+      await screen.findByText('width="600"', { exact: false }),
+    ).toBeVisible();
+    expect(
+      await screen.findByText('height="400"', { exact: false }),
+    ).toBeVisible();
+    expect(
+      await screen.findByText(`src="${url}?standalone=1&height=400"`, {
+        exact: false,
+      }),
+    ).toBeVisible();
+  });
+});