Reactions to post don't work

[ccamara]

Describe the bug
On https://sandbox.openscience.network/, whenever I want to react a post (e.g. https://sandbox.openscience.network/pub/objects/01K7Q5QRN31YAJXGSTW8FE5P8B) I get to see the emoji picker, but the icon won't be sumitted

To Reproduce
Steps to reproduce the behavior:

1. Go to https://sandbox.openscience.network/pub/objects/01K7Q5QRN31YAJXGSTW8FE5P8B
2. Click on reactions
3. Select from an emoji picker
4. Emojis cannot be selected/submitted

Expected behavior
Emoji should be displayed

Screenshots
If applicable, add screenshots to help explain the problem.

Bonfire environment (please complete the following information):
https://sandbox.openscience.network/

Client device (please complete the following information):

• Device: Laptop
• OS: MacOS 15.7.1
• Browser Zen
• Browser Version 1.17b (Firefox 144.0)

Additional context
Add any other context about the problem here.