We improved how an application source folder is classified. Now, any folder that has a CMakeLists.txt file that defines a project or looks for the Zephyr package are classified as an application source. The logic for determining what constitutes a valid nRF Connect application has been relaxed slightly to ensure that the extension is not preventing valid applications from being added to the sidebar. Previously, the extension used to require either a prj.conf file or a sample.yaml file to be present in the application source directory, which is no longer the case for nRF Connect SDK applications.