feat(NcListItem): provide additional slots for NcActions / extra actions customization

[Antreesy]

☑️ Resolves

• Ref Adjust UI according to the design review nextcloud/spreed#12800
• Allows more specific customization of NcActions component's icon
• Allows additional elements inside NcListItem

🖼️ Screenshots

🏁 Checklist

• ⛑️ Tests are included or are not applicable
• 📘 Component documentation has been extended, updated or is not applicable
• 3️⃣ Backport to next requested with a Vue 3 upgrade

[susnux]

Not really sure, either we:

1. allow any actions, then there should be only one slot and we deprecate the actions slot
2. Only allow actions like currently, but then probably we need to allow at least an icon slot

[Antreesy]

2. we need to allow at least an icon slot

And something like an actionProps, like inline e.t.c
But I'd agree, that option 1 is more durable. maybe we can support both for v8 and drop starting from v9?

[susnux]

Thats why I would go with 1 for the future, no?

[ShGKme]

1. allow any actions, then there should be only one slot and we deprecate the actions slot

Then it is more complex to use because we need to define some props and events of actions

[ShGKme]

@susnux What about another way:

1. Add actions-icon slot just for icon
2. Add new extra-actions slot for additional buttons.

So any additional buttons are added not via inline options but via a new slot as a normal buttons?

[susnux]

@susnux What about another way:

1. Add `actions-icon` slot just for icon

This I think makes really sense!

2. Add new `extra-actions` slot for additional buttons.

Do you have a use case for this on Talk? Otherwise I think it is not a good idea to have multiple buttons here.
But would be also ok with this.

[ShGKme]

Do you have a use case for this on Talk?

We have almost exactly the same component re-implemented for participants in Talk. We have additional buttons there in a lobby and with SIP:

[susnux]

We have almost exactly the same component re-implemented for participants in Talk. We have additional buttons there in a lobby and with SIP:

Ah ok makes sense.

(OT: I really do not like this component it is so complex to fit every use case even if it would be simpler to just create a just custom component for it, while most often use case is just"a simple listitem").

[susnux]

Please apply the comment by @ShGKme (template v-if) otherwise fine

[Antreesy]

/backport to next