Copy Dropdown Contents

This extension enables people to copy the contents of a dropdown menu (to be precise, an HTML `<select>` element) into their clipboard. For people who are not familiar with the browser DevTools, they have to type manually to copy the contents. With this extension, they only need one right click. LIMITATIONS: - This extension doesn't work if the `<select>` element is inside an `<iframe>`. - Due to the limitations of browser Clipboard API, the user must focus on the document, or the copy function will not work. For example, if you have the browser DevTools open and focus in the console, pressing "Copy Dropdown Contents" in the context menu will result in the "Document is not focused." error.