Add disabled state to accordion and collapse

[Kopyov]

Prerequisites

• I have searched for duplicate or closed feature requests
• I have read the contributing guidelines

Proposal

Would be very handy to have an ability to disable certain accordion or collapse items by adding .disabled to .accordion-item.

Motivation and context

If accordion is used as a simple wizard (e.g. checkout process in e-commerce or user registration), next steps can be shown but be disabled until user completes the current step. This option will extend accordion use cases.

[ffoodd]

@malarium suggested a first step in their PR: using .pe-none utility to disable pointer events on your disable accordion.

I guess that's not enough to completely cover your needs, but that's a good starting point indeed!

[patrickhlauke]

generally, you'd disable an accordion or collapse by making the <button> that controls it disabled ... no need for any extra functionality/changes?