Fix arrangement of file names in columns

[abhijitnathwani]

I observed one thing when I run git-sim add , and if we have files in working mods and untracked files, the arrow from column 1 to column 3 is drawn over the file names in column 2. This is not definitive, but running the same command multiple times gives the problematic visualization.

Normal simulation:

Errorneus simulation:

Filing an issue so that we can keep a track and fix it in the future.