breaking(ui-shell): remove GlobalHeader, SideNav folders (#1223)

* breaking(ui-shell): remove GlobalHeader/SideNav folders

* Run "yarn build:docs"

types/UIShell/HeaderAction.svelte.d.ts

@@ -0,0 +1,49 @@
+/// <reference types="svelte" />
+import { SvelteComponentTyped } from "svelte";
+
+export interface HeaderActionProps
+  extends svelte.JSX.HTMLAttributes<HTMLElementTagNameMap["button"]> {
+  /**
+   * Set to `true` to open the panel
+   * @default false
+   */
+  isOpen?: boolean;
+
+  /**
+   * Specify the icon to render
+   * @default undefined
+   */
+  icon?: typeof import("svelte").SvelteComponent;
+
+  /**
+   * Specify the icon to render when the action panel is open
+   * @default undefined
+   */
+  closeIcon?: typeof import("svelte").SvelteComponent;
+
+  /**
+   * Specify the text
+   * Alternatively, use the named slot "text" (e.g., <div slot="text">...</div>)
+   * @default undefined
+   */
+  text?: string;
+
+  /**
+   * Obtain a reference to the button HTML element
+   * @default null
+   */
+  ref?: null | HTMLButtonElement;
+
+  /**
+   * Customize the panel transition (i.e., `transition:slide`).
+   * Set to `false` to disable the transition
+   * @default { duration: 200 }
+   */
+  transition?: false | import("svelte/transition").SlideParams;
+}
+
+export default class HeaderAction extends SvelteComponentTyped<
+  HeaderActionProps,
+  { click: WindowEventMap["click"]; close: CustomEvent<any> },
+  { default: {}; closeIcon: {}; icon: {}; text: {} }
+> {}