`Dismiss` duration doesn't apply to transition.

Describe the bug
When I set up a Dismiss object with the following options:

<div id="dismissMe">
  <p> Dismiss me! </p>
  <span id="dismissTrigger"> [X] </span>
</div>

<script>
  let dismiss = new Dismiss(document.querySelector("#dismissMe"), null, { duration: 10000 });
  document.querySelector("#dismissTrigger").addEventListener("click", (e) => { dismiss.hide() });
</script>

I expect that when clicking "[X]" the dismiss transition (default "transition-opacity") to follow the duration, the #dismissMe element opacity should slowly disappear, taking 10s to change from 1 to 0.

To Reproduce
Steps to reproduce the behavior:

1. Set up a Dismiss with the duration option set to 10000
2. Trigger the .hide() function
3. Note that the transition-opacity for the target element goes from 1 to 0 fast (assuming 300ms)
4. Note that the target element block space is still present on the page for the remaining duration.
5. After 10s (the duration option) the element is removed from the page, the block space previously occupied by the target element is removed.

Expected behavior
I expect the transition to follow the duration option, the element opacity should slowly decrease in the 10s duration as set in the example.

Desktop (please complete the following information):

• OS: macOS
• Browser: Chrome
• Version: 126

Reproduce the provided HTML and JavaScript example with Dismiss({ duration: 10000 }) and trigger hide(). Start by tracing the Dismiss hide() behavior alongside the transition-opacity class. Done means opacity changes over the configured duration while the element is removed only after that duration.