feat: Enhance demo components with new input types and layout options

- Added dropdown and radio input components to the demo for application settings.
- Introduced horizontal layout for display preferences and notification settings.
- Implemented checkbox demo with programmatic selection and clear functionality.
- Created file upload and quantity selector demos with various states and configurations.
- Added comprehensive radio input demo showcasing group behavior and various states.
- Developed text input demo with validation states and advanced features like password visibility.
- Introduced a new panel component for better content organization in demos.

ts_web/elements/dees-form.ts

@@ -13,29 +13,41 @@ import { DeesInputText } from './dees-input-text.js';
 import { DeesInputQuantitySelector } from './dees-input-quantityselector.js';
 import { DeesInputRadio } from './dees-input-radio.js';
 import { DeesInputDropdown } from './dees-input-dropdown.js';
+import { DeesInputFileupload } from './dees-input-fileupload.js';
+import { DeesInputIban } from './dees-input-iban.js';
+import { DeesInputMultitoggle } from './dees-input-multitoggle.js';
+import { DeesInputPhone } from './dees-input-phone.js';
+import { DeesInputTypelist } from './dees-input-typelist.js';
 import { DeesFormSubmit } from './dees-form-submit.js';
 import { DeesTable } from './dees-table.js';
 import { demoFunc } from './dees-form.demo.js';
-import { DeesInputIban } from './dees-input-iban.js';
 
 // Unified set for form input types
 const FORM_INPUT_TYPES = [
   DeesInputCheckbox,
   DeesInputDropdown,
+  DeesInputFileupload,
   DeesInputIban,
-  DeesInputText,
+  DeesInputMultitoggle,
+  DeesInputPhone,
   DeesInputQuantitySelector,
   DeesInputRadio,
+  DeesInputText,
+  DeesInputTypelist,
   DeesTable,
 ];
 
 export type TFormInputElement =
   | DeesInputCheckbox
   | DeesInputDropdown
+  | DeesInputFileupload
   | DeesInputIban
-  | DeesInputText
+  | DeesInputMultitoggle
+  | DeesInputPhone
   | DeesInputQuantitySelector
   | DeesInputRadio
+  | DeesInputText
+  | DeesInputTypelist
   | DeesTable<any>;
 
 declare global {
@@ -119,7 +131,7 @@ export class DeesForm extends DeesElement {
    */
   public async collectFormData() {
     const children = this.getFormElements();
-    const valueObject: { [key: string]: string | number | boolean | any[] | { option: string; key: string; payload?: any } } = {};
+    const valueObject: { [key: string]: string | number | boolean | any[] | File[] | { option: string; key: string; payload?: any } } = {};
     for (const child of children) {
       if (!child.key) {
         console.log(`form element with label "${child.label}" has no key. skipping.`);