coapp Platform Enhancements

Added a daily resource booking mode, making it easier to schedule and manage resources.
Updated German language support for a smoother local user experience.
Introduced a controllable “Delete Community” option in account settings under a feature flag.
Fixed month titles in the calendar view for accurate date representation.
Improved invoice handling: zero‑priced lines now appear correctly and tax calculations have been refined.
Enhanced post featured content logic so displayed posts match expected preferences.
Refined the link preview layout for a cleaner, more readable appearance.