changed from shorthand to full target name

[gatorjuice]

This shorthand syntax is raising deprecation warning. This started to happen after I updated a bunch of dependencies or possibly just Nodejs overall. I love this template and would like to contribute.

 WARNING  Compiled with 1 warning                                                                                  6:30:36 PM

 warning  in ./node_modules/startbootstrap-resume/dist/css/styles.css

Module Warning (from ./node_modules/postcss-loader/dist/cjs.js):
Warning

(2493:11) autoprefixer: Replace color-adjust to print-color-adjust. The color-adjust shorthand is currently deprecated.


  App running at:
  - Local:   http://localhost:8080/