feat: Changes to style and logic for ui parts

- Update hippie styles
- Move top element for new page to header macro
- Reassign ui and example collections

source/style/ui.scss

@@ -1,21 +1,11 @@
 @use "sass:map";
 
+$color_text_basic: white;
+$color_head_basic: white;
+
 @import "demo_config";
 @import "hippie-style/hippie";
 
-$z-indexes: (
-	"default": 0,
-	"content-bottom": 1,
-	"content-low": 2,
-	"content-med": 3,
-	"content-high": 4,
-	"content-top": 10,
-	"modal-low": 11,
-	"modal-med": 12,
-	"modal-high": 13,
-	"toast": 100
-);
-
 .op_show {
 	transition: $transition_show;
 }
@@ -34,6 +24,10 @@ $z-indexes: (
 	}
 }
 
+.body_ui {
+	height: 100vh;
+}
+
 .step {
 	@extend %full_parent;
 }