By selecting a "featured" tour from the plugin's settings page, users should override the default Welcome Guide modal that pops up in the Gutenberg Editor.
Acceptance criteria: The featured tour should pop up when you open the editor for the first time
Problem: The plugin is currently not compatible with the classic WordPress editor. A possible workaround would be to display a notice for users who are still using the Classic Editor to switch to the Gutenberg Editor in order to use the plugin.
A small change is required on plugin options page. The last option, "show the featured guide in the whole admin" should be visible only when featured guide is not set to "None".
When the posts are fetched, for a brief period of time, they are undefined. Maybe we can add a spinner to indicate that data has been loaded, for a better user experience.
The guide component is now dynamic. However, we also need to make the buttons that trigger the guides in the Gutenberg post sidebar dynamic too. Also, each button should trigger the correct steps that are connected to the corresponding guide. (currently the guide list is hardcoded in guide-list.js and they all just show all available guides):