[🚀 Request] Access WebView in BottomBar

[datho7561]

What is the feature you are missing?

• You can contribute additional webviews as panels that go into the BottomBar. I have an example of doing this in this PR to vscode-openshift. It would be nice to be able to access the content of these webviews in tests.

Could you provide some example of usage?
eg. asserting the contents of an ordered list in the webview

// in a mocha BDD test suite, using chai for assertions
const webview = new BottomBarWebview();
webview.switchToFrame();
const listItems = webview..findElements(By.css('ol>li'));
const listItemsText = await Promise.all(listItems.map(async listItem => listItem.getText()));
expect(listItemsText).to.contain('list item 1');
webview.switchBack();