0.7.1

I'm going to only do a minor version bump or else I'm gonna start running out of numbers before 1.0.0 xd.
This release took a while to come out because I busy with school.

• reworked the way directory contents are printed

  • can now specify prefixes for specific files for them to stand out

• certain structs are now static via lazy_static

• getting user input is more stable now and support unicode character

• switched from wcwidth to unicode_width

• switched from mime_detective back to tree_magic for mimetype parsing

• fix a lot of issues with file IO (specifically cut/copy/paste)

• refactored how sorting works

• search now can go back and forth with search_next/search_prev

• reworked all commands to return back a result which gets printed on Err

• removed preview support

  • can currently only preview directory