[HxOffcanvas] Immediate Hide after Show leads to unexpected results

[hakenr]

(real scenario: doubleclicking a toggle button)

Reproduction steps:

private async Task HandleClick()
{
  await offcanvasComponent.ShowAsync();
  await offcanvasComponent.HideAsync();
}

• Currently, the Hide method fails due to an ArgumentNullException: Value cannot be null. (Parameter 'jsObjectReference') because the _jsModule is not initialized.
• If we add EnsureJsModule(), the error is resolved, but the offcanvas remains open (as the Show method is delayed until OnAfterRender).

...we need to adopt a unified approach like RegisterOnAfterRenderAction() to enable sequential calls to JavaScript methods.

cc @Arnnes

[hakenr]

Fixed by 1a81709ca9cdcd8b4bd3698180a89e40ac2ed5aa