Overhaul everything

- Remove centralized vim folders and update .gitignore accordingly

- Minor highlighting updates

- Change in 'formatoptions'

- Add `'path'` and `'inex'` so `gf` searches more thoroughly

- Remove egregious `:autocmd`s

- Use `'fdls'` to set default fold level

- Remove questionable defaults where covered by
  [unimpaired](/tpope/vim-unimpaired)

- Update `'listchars'`

- Minor formatting updates

- Add `Keycodes` section for better terminal input support

- Use `'smartindent'` in favour of `'cindent'`

- Add a new helpful map
Update ftplugins