peer count for all games

crates/lanspread-db/src/db.rs

@@ -60,6 +60,8 @@ pub struct Game {
     pub eti_game_version: Option<String>,
     /// Local game version from version.ini (YYYYMMDD format)
     pub local_version: Option<String>,
+    /// Number of peers that have this game available
+    pub peer_count: u32,
 }
 
 impl fmt::Debug for Game {