feat(comments): Add a meta data column for comments

[nickvergessen]

• Required for ✏️ Edit message - API spreed#11206

Summary

Allows apps to store meta-data information into the comments table. A usecase that exists since a longer time is being able to indicate that a message was sent silently.
For the upcoming "Edit message" we want to store the actor and time information of the last person that edited a chat message, to avoid another database query on every chat request.

While changing the table anyway, I enforced the currently optional reference_id column which talk also relies on.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[marcelklehr]

Psalm complains about the usage of updateQuery in the update method