Use the `Fs` trait for refreshing buffers

Co-Authored-By: Nathan Sobo <nathan@zed.dev>
Co-Authored-By: Max Brunsfeld <max@zed.dev>
ad3dcfed10Antonio Scandurra committed on 7/9/2021, 5:02:27 PMparent4f4233e
1 file changedLine totals unavailable