feat(falcon-PS9): Add custom.scss file to follow 7-in-1 structure

falcon/_dev/css/theme/_index.scss

@@ -5,3 +5,4 @@
 @import "layout/index";
 @import "components/index";
 
+@import "custom/custom";

falcon/_dev/css/theme/custom/_custom.scss

@@ -0,0 +1,22 @@
+/* This is the main custom SCSS file for the Falcon theme. 
+
+I am loosely following the 7 in 1 structure for better organization of the styles. Learn more here:
+https://medium.com/@diyorbekjuraev77/be-a-master-at-creating-the-7-1-sass-pattern-776fdfb5a3b1
+
+⚠️NOTE: All bootstrap overrides have been configured under themes/falcon/_dev/css/abstracts/variables/bootstrap */
+
+//Abstracts: Things used throughout the site such as utility classes and generic overrides.
+//@import "abstracts/mixins";
+
+// Components: parts of the theme itself that are not associated with a module.
+//@import "components/buttons";
+
+// Modules: Styling for specific modules.
+//@import "modules/";
+
+//Layouts: Parts of a page, such as the header, footer, etc.
+//@import "layout/footer";
+//@import "layout/header";
+
+// Pages
+//@import "pages/home";