give the ability to the user to also navigate different folders, and select all the pages under a subfolder

[mlnomadpy]

Sometimes, the user may want to run the prompt on the content of pages within a subfolder of their bookmarks. We need to ensure that this capability is available to the user. Additionally, we may need to save a summary of the page along with the page when it is first saved. This will greatly enhance the user experience, as all of the pages they add will be summarized immediately, reducing the amount of time they would spend combining different pages.