fix(icons): update icon usage across components

- Replace .iconName property with .icon for dees-icon component
- Fix incorrect lucide icon names to use proper prefix and kebab-case
- Replace deprecated .iconFA property with .icon
- Add loading animation to dees-input-fileupload button
- Maintain compatibility with external interfaces expecting iconName

ts_web/elements/dees-spinner.ts

@@ -120,9 +120,9 @@ export class DeesSpinner extends DeesElement {
       <div class="${this.status}" id="loading">
         ${(() => {
           if (this.status === 'success') {
-            return html`<dees-icon style="transform: translateX(1%) translateY(3%);" .iconFA=${'circleCheck' as any}></dees-icon>`;
+            return html`<dees-icon style="transform: translateX(1%) translateY(3%);" .icon=${'fa:circle-check'}></dees-icon>`;
           } else if (this.status === 'error') {
-            return  html`<dees-icon .iconFA=${'circleXmark' as any}></dees-icon>`;
+            return  html`<dees-icon .icon=${'fa:circle-xmark'}></dees-icon>`;
           }
         })()}
       </div>