feat(core): add fullscreen button component (#459)

packages/html/src/define/ui/fullscreen-button.ts

@@ -0,0 +1,9 @@
+import { FullscreenButtonElement } from '../../ui/fullscreen-button/fullscreen-button-element';
+
+customElements.define(FullscreenButtonElement.tagName, FullscreenButtonElement);
+
+declare global {
+  interface HTMLElementTagNameMap {
+    [FullscreenButtonElement.tagName]: FullscreenButtonElement;
+  }
+}