Adds the *chirp emote from nymphs to Diona

[ExusA]

What Does This PR Do

Adds the nymph emote *chirp to diona too.

Why It's Good For The Game

It's a tiny bit of RP content that lets diona show off their composite nature.
If they're made of things that can chirp, they ought to be able to chirp.

*chirp is a pretty short and quiet emote, so I don't expect people to find it irritating.

Testing

Used the emote, checked that the emote was in the *help menu, tested the keybind settings to make sure the emote showed up there and the keybind worked.
Listened to the emote at minimum and maximum age to make sure it still sounded alright.

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Declaration

• I confirm that I either do not require pre-approval for this PR, or I have obtained such approval and have included a screenshot to demonstrate this below.

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Changelog

🆑
soundadd: Diona can now chirp
/:cl:

[ExusA]

I'm not sure if there's something that I need to do to make the new emote keybind go in the database, or if it's automatic. Let me know if that's something I need to figure out.

[lewcc]

Code looks good!