Add news entry to a category by answering the report in the admin room

[thibaultamartin]

When a news entry gets announced in the admin room as follows:

✅ @person:provider.org submitted a news entry. [open message]

Replying to that message with project projectName should:

• Make the bot add the reaction emoji corresponding to the project in the news report
• Add the news entry in the corresponding section

Replying to the same message with clear project should make the bot un-react to the original report and remove it from the corresponding section.

[thibaultamartin]

I don't think this is really necessary, since emoji can be free form. Should we close this one?