Update wifi patch list when patch storage changed

[LnnrtS]

This try to catch changes in the patch storage and notifies all connected wifi clients of the updated patch list.

It works for me when creating a new patch via the GUI. Couldn't test inserting an SD card due to #299 and I still need to get hold of an USB-C thumb drive to test that

[danngreen]

I tested this branch out. I get the "Not connected" notice at the top of the browser when I insert an SD Card containing a lot of files, but it goes back to "Connected" by itself.
Inserting and removing a card or thumb drive doesn't cause the browser to refresh the patch list. It doesn't populate the SD or USB lists at all no matter what I do.

Then I applied the SDMMC timeout fix to the branch. Now the SD Card is updated almost immediately in the browser, with no "No Connection".

USB insert/eject still does not cause any changes in the browser...

[LnnrtS]

USB insert/eject still does not cause any changes in the browser...

hm, this is working for me. Same as with sd card

[danngreen]

USB insert/eject still does not cause any changes in the browser...

hm, this is working for me. Same as with sd card

OK, yeah it's working for me now, too. I don't know what changed.
But I tested it out, and seems to be working well now. I noticed the port changed from :8080 to :80, that's nice.

I'll go ahead and merge this into wifi_query_ip since there's no application.bin conflict