feat: Add ListBox styles

scss/all.scss

@@ -36,6 +36,7 @@
 @import "validator";
 @import "switch";
 @import "maskedtextbox";
+@import "listbox";
 
 // Dataviz
 @import "dataviz";

scss/listbox.scss

@@ -0,0 +1,12 @@
+@import "variables";
+@import "mixins/all";
+
+
+// Dependencies
+@import "button";
+@import "popup";
+
+
+// Component
+@import "listbox/layout";
+@import "listbox/theme";

scss/listbox/_layout.scss

@@ -0,0 +1 @@
+@import "~@progress/kendo-theme-default/scss/listbox/layout";

scss/listbox/_theme.scss

@@ -0,0 +1,17 @@
+@include exports('listbox/theme') {
+    .k-listbox {
+        .k-list-scroller {
+            background-color: $widget-bg;
+            border-color: $widget-border;
+            color: $widget-text;
+        }
+        .k-drop-hint {
+            border-top-color: $accent;
+        }
+    }
+
+    .k-item.k-drag-clue {
+        background-color: $list-item-selected-bg;
+        color: $list-item-selected-text;
+    }
+}