[Feature]: Changeable delay for button style number card

[Boerny41]

Requirements

• I have updated Mushroom to the latest available version
• I did a search to see if there is a similar issue or if a pull request is open.

Is your feature request related to a problem?

I use the button style number card (see below) to control a smart picture frame. It is used like the program up/down button on a TV remote - press it once, see what's coming up - press it again if necessary.

Right now, after every press, there seems to be a 2-second delay before the changes are registered. Since the color of the number changes from white to a dark gray during that time, I'd guess that it is a feature that allows us to set the correct number before sending the changes to the device.
(Please note that I'm not talking about a 2-second delay until the changes take effect, but until the number on the right matches the one on the left)

Sadly, for my use case the delay is a bit annoying, and it would be nice if we could set it.

Describe the solution you'd like

A way to control the delay like

  - type: custom:mushroom-number-card
    entity: number.pic
    icon: mdi:matrix
    layout: horizontal
    fill_container: false
    display_mode: buttons
    delay: 0

Describe alternatives you've considered

No response

Additional context

No response