MFM: Rewrite of the Directory Listing Bar

This version no longer uses the command line tool fd (an Rust powered version of find). The internal go program does the directory searching needed. This makes the displaying of directory change location much faster and less buggy. The full interface for searching for a new directory works easier and is scrollable.

This version has had many bugs fixed and features streamlined. All libraries used have been updated to the latest versions. This version runs so much better than all the previous versions. All known bugs are fixed, but I'm sure there are some that I haven't found yet. If you find one, please send me an issue!