Add documentation App (#2219)

docs/scss/docs.scss

@@ -0,0 +1,46 @@
+@use "@docsearch/css/dist/style.css";
+
+:root {
+  --docsearch-primary-color: var(--tblr-primary);
+  --docsearch-searchbox-background: var(--tblr-bg-surface);
+  --docsearch-text-color: var(--tblr-body-text);
+  --docsearch-key-shadow: 0 0 0 1px var(--tblr-border-color);
+  --docsearch-key-gradient: var(--tblr-bg-surface-secondary);
+}
+
+.DocSearch-Button {
+  width: 100%;
+  box-shadow: 0 0 0 1px var(--tblr-border-color);
+  font-weight: var(--tblr-font-weight-normal);
+  transition: all 0.2s ease-in-out;
+}
+
+.DocSearch-Button-Key {
+  top: 0;
+}
+
+.DocSearch-Container {
+  z-index: 10000;
+}
+
+.no-transition {
+	* {
+		transition: none !important;
+	}
+}
+
+.example>.modal,
+.example>.offcanvas {
+	display: block !important;
+	position: relative !important;
+}
+
+.example>.offcanvas-backdrop {
+	position: absolute !important;
+}
+
+
+.shiki {
+  background: var(--tblr-gray-900) !important;
+  color: var(--tblr-gray-300) !important;
+}