feat: add DeesInputFileupload and DeesInputRichtext components

- Implemented DeesInputFileupload component with file upload functionality, including drag-and-drop support, file previews, and clear all option.
- Developed DeesInputRichtext component featuring a rich text editor with a formatting toolbar, link management, and word count display.
- Created demo for DeesInputRichtext showcasing various use cases including basic editing, placeholder text, different heights, and disabled state.
- Added styles for both components to ensure a consistent and user-friendly interface.
- Introduced types for toolbar buttons in the rich text editor for better type safety and maintainability.

ts_web/elements/dees-appui-appbar/template.ts

@@ -0,0 +1,18 @@
+import { html, type TemplateResult } from '@design.estate/dees-element';
+import type { DeesAppuiBar } from './component.js';
+
+export const renderAppuiAppbar = (component: DeesAppuiBar): TemplateResult => {
+      return html`
+        <div class="menus">
+          ${component.showWindowControls ? html`<dees-windowcontrols></dees-windowcontrols>` : ''}
+          ${component.renderMenuItems()}
+        </div>
+        <div class="breadcrumbs">
+          ${component.renderBreadcrumbs()}
+        </div>
+        <div class="account">
+          ${component.renderAccountSection()}
+        </div>
+      `;
+  
+};