Remove the app/styles folder and restore the styles folder

This allows git to consider most of these a "move" so we keep the git history of the files in the `app/styles` folder.

styles/_a-components.scss

@@ -0,0 +1,53 @@
+/* ==================================
+   #Components
+   File namespace: _c-...
+   Style namespace: .au-c-...
+   ================================== */
+
+@import "./components/c-accordion";
+@import "./components/c-alert";
+@import "./components/c-app";
+@import "./components/c-badge";
+@import "./components/c-body-container";
+@import "./components/c-brand";
+@import "./components/c-button";
+@import "./components/c-button-group";
+@import "./components/c-card";
+@import "./components/c-content";
+@import "./components/c-content-header";
+@import "./components/c-control";
+@import "./components/c-control-group";
+@import "./components/c-data-table";
+@import "./components/c-dropdown";
+@import "./components/c-fieldset";
+@import "./components/c-file-card";
+@import "./components/c-file-upload";
+@import "./components/c-form";
+@import "./components/c-form-row";
+@import "./components/c-heading";
+@import "./components/c-help-text";
+@import "./components/c-hr";
+@import "./components/c-icon";
+@import "./components/c-input";
+@import "./components/c-label";
+@import "./components/c-link";
+@import "./components/c-list";
+@import "./components/c-list-horizontal";
+@import "./components/c-list-navigation";
+@import "./components/c-loader";
+@import "./components/c-panel";
+@import "./components/c-pagination";
+@import "./components/c-pill";
+@import "./components/c-main-container";
+@import "./components/c-main-header";
+@import "./components/c-main-footer";
+@import "./components/c-modal";
+@import "./components/c-sidebar";
+@import "./components/c-sidebar-action";
+@import "./components/c-table";
+@import "./components/c-tabs";
+@import "./components/c-textarea";
+@import "./components/c-timepicker";
+@import "./components/c-toaster";
+@import "./components/c-toolbar";
+@import "./components/c-toggle-switch";

app/styles/ember-appuniversum/_a-elements.scss → styles/_a-elements.scss

@@ -4,7 +4,4 @@
    File namespace: _e-...
    ================================== */
 
-@use "../ember-appuniversum-deprecated" as deprecated;
-@include deprecated.paths("ember-appuniversum/a-elements");
-
-@import "e-page";
+@import "./elements/e-page";

styles/_a-generic.scss

@@ -0,0 +1,9 @@
+/* ==================================
+   #GENERIC
+   Reset, global box-sizing and font-styles
+   File namespace: _g-...
+   ================================== */
+
+@import "./generic/g-reset";
+@import "./generic/g-box-sizing";
+@import "./generic/g-font";

styles/_a-objects.scss

@@ -0,0 +1,12 @@
+/* ==================================
+   #OBJECTS
+   OOCSS unstyled objects
+   File namespace: _o-...
+   Style namespace: .au-o-...
+   ================================== */
+
+@import "./objects/o-box";
+@import "./objects/o-flow";
+@import "./objects/o-grid";
+@import "./objects/o-layout";
+@import "./objects/o-region";

styles/_a-plugins.scss

@@ -0,0 +1,8 @@
+/* ==================================
+   #PLUGINS
+   Third-party styles
+   File namespace: _p-...
+   ================================== */
+
+@import "./plugins/p-ember-power-select";
+@import "./plugins/p-duet-datepicker";

styles/_a-settings.scss

@@ -0,0 +1,10 @@
+/* ==================================
+   #VARIABLES
+   Project settings and variables
+   File namespace: _s-...
+   ================================== */
+
+@import "./settings/s-colors.scss";
+@import "./settings/s-global";
+@import "./settings/s-utilities";
+@import "./settings/s-root";

styles/_a-tools.scss

@@ -0,0 +1,8 @@
+/* ==================================
+   #TOOLS
+   Project settings and variables
+   File namespace: _t-...
+   ================================== */
+
+@import "./tools/t-font-size";
+@import "./tools/t-sass-mq";

styles/_a-utilities.scss

@@ -0,0 +1,22 @@
+/* ==================================
+   #UTILITIES
+   Single function helper classes
+   File namespace: _u-...
+   Style namespace: .au-u-...
+   ================================== */
+
+@import "./utilities/u-align-text";
+@import "./utilities/u-background";
+@import "./utilities/u-break-word";
+@import "./utilities/u-headings";
+@import "./utilities/u-hide";
+@import "./utilities/u-flex";
+@import "./utilities/u-font-family";
+@import "./utilities/u-font-weights";
+@import "./utilities/u-max-widths";
+@import "./utilities/u-paragraphs";
+@import "./utilities/u-print";
+@import "./utilities/u-responsive-spacings";
+@import "./utilities/u-spacings";
+@import "./utilities/u-visible";
+@import "./utilities/u-widths";

app/styles/ember-appuniversum.scss → styles/_index.scss

@@ -19,14 +19,11 @@
  * UTILITIES: Single function helper classes (namespace: '.au-u-...')
  */
 
-@use "./ember-appuniversum-deprecated" as deprecated;
-@include deprecated.paths("ember-appuniversum");
-
-@import "ember-appuniversum/a-settings";
-@import "ember-appuniversum/a-tools";
-@import "ember-appuniversum/a-generic";
-@import "ember-appuniversum/a-elements";
-@import "ember-appuniversum/a-objects";
-@import "ember-appuniversum/a-components";
-@import "ember-appuniversum/a-plugins";
-@import "ember-appuniversum/a-utilities";
+@import "./a-settings";
+@import "./a-tools";
+@import "./a-generic";
+@import "./a-elements";
+@import "./a-objects";
+@import "./a-components";
+@import "./a-plugins";
+@import "./a-utilities";

app/styles/ember-appuniversum/_c-accordion.scss → styles/components/_c-accordion.scss

@@ -5,9 +5,6 @@
 /* Variables
    ========================================================================== */
 
-@use "../ember-appuniversum-deprecated" as deprecated;
-@include deprecated.paths("ember-appuniversum/c-accordion");
-
 $au-accordion-spacing: $au-unit !default;
 
 /* Component

app/styles/ember-appuniversum/_c-alert.scss → styles/components/_c-alert.scss

@@ -2,9 +2,6 @@
    #ALERT
    ================================== */
 
-@use "../ember-appuniversum-deprecated" as deprecated;
-@include deprecated.paths("ember-appuniversum/c-alert");
-
 /* Variables
    ========================================================================== */
 

app/styles/ember-appuniversum/_c-app.scss → styles/components/_c-app.scss

@@ -3,9 +3,6 @@
    Global app container
    ================================== */
 
-@use "../ember-appuniversum-deprecated" as deprecated;
-@include deprecated.paths("ember-appuniversum/c-app");
-
 .au-c-app {
   display: flex;
   flex-direction: column;

app/styles/ember-appuniversum/_c-badge.scss → styles/components/_c-badge.scss

@@ -2,9 +2,6 @@
    #BADGE
    ================================== */
 
-@use "../ember-appuniversum-deprecated" as deprecated;
-@include deprecated.paths("ember-appuniversum/c-badge");
-
 /* Variables
    ========================================================================== */
 

app/styles/ember-appuniversum/_c-body-container.scss → styles/components/_c-body-container.scss

@@ -2,9 +2,6 @@
   #BODY CONTAINER
   ================================== */
 
-@use "../ember-appuniversum-deprecated" as deprecated;
-@include deprecated.paths("ember-appuniversum/c-body-container");
-
 .au-c-body-container {
   display: flex;
   flex-direction: column;

app/styles/ember-appuniversum/_c-brand.scss → styles/components/_c-brand.scss

@@ -2,9 +2,6 @@
    #BRAND
    ================================== */
 
-@use "../ember-appuniversum-deprecated" as deprecated;
-@include deprecated.paths("ember-appuniversum/c-brand");
-
 /* Variables
    ========================================================================== */
 

app/styles/ember-appuniversum/_c-button-group.scss → styles/components/_c-button-group.scss

@@ -2,9 +2,6 @@
    #BUTTON-GROUP
    ================================== */
 
-@use "../ember-appuniversum-deprecated" as deprecated;
-@include deprecated.paths("ember-appuniversum/c-button-group");
-
 .au-c-button-group {
   display: flex;
   align-items: center;