Fix prop renders

* Incorporate prop scaling
* Props now render to a canvas

crates/chattyness-admin-ui/src/pages/props_detail.rs

@@ -95,6 +95,9 @@ fn PropDetailView(prop: PropDetail) -> impl IntoView {
                         None => "Not set".to_string(),
                     }}
                 </DetailItem>
+                <DetailItem label="Default Scale">
+                    {format!("{}%", (prop.default_scale * 100.0) as i32)}
+                </DetailItem>
                 <DetailItem label="Status">
                     {if prop.is_active {
                         view! { <span class="status-badge status-active">"Active"</span> }.into_any()