feat: add letters feature with detail view and listingHEADmain

- Introduced new routes for letters and their details.
- Created pages for displaying letter details and listing letters.
- Added new types for letters, including participants, messages, and attachments.
- Implemented API calls for fetching letters and managing messages (reply, edit, delete).
- Enhanced stats to include unread letters and pending districts for staff users.
- Updated styles for letters and their components.
- Added privacy settings for letters (public and friends).
- Modified user model to include letter privacy settings.
- Improved error handling and user feedback in the UI.

1 files changed, 2 insertions, 0 deletions

diff --git a/garden/src/types/stats.ts b/garden/src/types/stats.ts
index 1d9364e..254f0b2 100644
--- a/garden/src/types/stats.ts
+++ b/garden/src/types/stats.ts
@@ -7,6 +7,8 @@ export interface CitizenSummary {
 export interface Stats {
   citizens: number;
   online: number;
+  unread_letters: number;
+  pending_districts: number;
   newest_citizens: CitizenSummary[];
   online_citizens: CitizenSummary[];
 }
\ No newline at end of file