feat(demo): add demoGroup metadata to components and update related dependencies

ts_web/elements/00group-button/dees-button-exit/dees-button-exit.ts

@@ -16,6 +16,7 @@ export class DeesButtonExit extends DeesElement {
   public static demo = () => html`
     <dees-button-exit></dees-button-exit>
   `;
+  public static demoGroup = 'Button';
 
   // INSTANCE
   @property({

ts_web/elements/00group-button/dees-button-group/dees-button-group.ts

@@ -21,6 +21,7 @@ declare global {
 @customElement('dees-button-group')
 export class DeesButtonGroup extends DeesElement {
   public static demo = demoFunc;
+  public static demoGroup = 'Button';
 
   @property()
   accessor label: string = '';

ts_web/elements/00group-button/dees-button/dees-button.ts

@@ -23,6 +23,7 @@ declare global {
 @customElement('dees-button')
 export class DeesButton extends DeesElement {
   public static demo = demoFunc;
+  public static demoGroup = 'Button';
 
   @property({
     reflect: true,