Interactive directory listing for "local" external storage

As of now, to mount a local directory you need to fill the path manually, which can be challenging for remote administrators. I propose to make it via interactive selectors.

Here is the very first and dirty proof-of-concept. It works only for newly created shares, and still has a few shortcomings. If the idea is viable, I should beautify the code (to best of my abilities, considering I tried jquery for the first time in my life).