LocalWatcher: Use fs-extra instead of fs
LocalWatcher: Use fs-extra instead of fs

So we get a promise-based API.

nono/cozy-desktop,nono/cozy-desktop,cozy-labs/cozy-desktop,nono/cozy-desktop,cozy-labs/cozy-desktop,cozy-labs/cozy-desktop,nono/cozy-desktop,cozy-labs/cozy-desktop