fix(lit-components): fix rendering and interaction issues in force-graph, html-table, and draggable-dom

- lit-force-graph: Refactored for instance reuse, better lifecycle management, and added dynamic imports for AR/VR modes.
- lit-html-table: Improved visual design, readability of headers, and fixed reactivity in editable mode.
- lit-draggable-dom: Fixed clipping issues by switching to relative/absolute positioning and resolved a panning speed bug caused by CSS variable inheritance.

lit-components/lit-modules/modules/header.ts

@@ -0,0 +1,32 @@
+import { html, css, LitElement } from "lit";
+import { customElement, property } from "lit/decorators.js";
+
+export const headerModuleStyles = [css`
+  header {
+    height: 60px;
+    background-color: #f5f5f5;
+    color: #333;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+  }
+`];
+
+export interface HeaderModuleProps {
+  title: string;
+}
+
+export function headerModuleTemplate(props: HeaderModuleProps) {
+  return html`<header>${props.title}</header>`;
+}
+
+@customElement("header-module")
+export class HeaderModule extends LitElement implements HeaderModuleProps {
+  static styles = headerModuleStyles;
+
+  @property({ type: String }) title = "Lit Modules";
+
+  render() {
+    return headerModuleTemplate(this);
+  }
+}