Explore folders feature

[david-wagih]

Why ?

We need to have this feature in order to be able to explore all folders and sub folders we need to scan to look for audio files on our seamlisten tool easily (like a JupyterNotebook)

How ?

I have build a method to gather the folder contents given the parent folder path using os.walk() method to do that effectively, and return all the folder contents in an array well constructed. and this endpoint is called whenver the path the user enters is a path to a directory not a normal file.

Test plan

when running the frontend and the backend successfully, paste in the field to fetch a path to a folder and when pressing fetch, if you opened the console you should see an array of folder contents shown correctly.

[david-wagih]

@Mortimerp9 @Celebio

[david-wagih]

this is a screenshot showing the Tree View in action. @Mortimerp9