Need to add unlisted status. Add a "List" button and an "Unlist" button to the action buttons.

[Liamn0244]

Describe the bug

Need to add unlisted status. Add a "List" button and an "Unlist" button to the action buttons.

Screenshots

[hgaol]

Hi, I'd like to work on it. BTW, Is the design in the description as expected?

[fenbox]

The "list/unlist" only control the display of the list, and are not affecting the state of the question. Let me think about how to show it in the Admin.

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I wrote some pseudo-code to describe this logic:

if the question is "unlisted" {

    // 1. Add an "unlisted" badge after the status badge;
    // 2. Add "List" in action menu;

} else {

    if the question is "pinned" {

        // Hide "Unlist" in action menu;

    } else {

        // Add "Unlist" in action menu;

    }

}

[fenbox]

Hi @hgaol, I've updated the description in https://github.com/apache/incubator-answer/issues/721#issuecomment-1888689472. Can you see if I'm describing it well?

[hgaol]

The description is clear for me. And I'll let you know if any further question.