Print Styles: Removed use of seperate style sheet

Seemed a bit redundant and complicated, since we're only adding a few
extra styles. Just merged into main styles instead.

resources/sass/_print.scss

@@ -1,6 +1,3 @@
-@use "sass:math";
-@import "variables";
-
 html, body {
   font-size: 12px;
   background-color: #FFF;

resources/sass/styles.scss

@@ -23,6 +23,10 @@
 @import "pages";
 @import "content";
 
+@media print {
+  @import "print";
+}
+
 // Jquery Sortable Styles
 .dragged {
   position: absolute;