feat(Message) - refactor components and store

[Antreesy]

☑️ Resolves

• Reduce amount of props used / passed to the often appeared components
• Reduce amount of component re-renders (:construction: still a lot of work to do)

🖼️ Screenshots

🏚️ Before	🏡 After
---	displayName of author has 4px bigger distance from the first message

🚧 Tasks

• Visual check
• Manual check
• Code review

🏁 Checklist

• ⛑️ Tests (unit and/or integration) are included or not required
• 📘 API documentation in docs/ has been updated or is not required
• 📗 User documentation in https://github.com/nextcloud/documentation/tree/master/user_manual/talk has been updated or is not required
• 🔖 Capability is added or not needed

[DorraJaouad]

Code reviewed ✅
and tested. ✅

[Antreesy]

/backport to stable27