fix(session): set the correct TTL for the cookie store (#992)

The time-to-live (TTL) of cookies stored in the database was incorrect because the connect-typeorm
library takes a TTL in seconds and not milliseconds, making cookies valid for ~82 years instead of
30 days.

fix #991

server/index.ts

@@ -175,7 +175,7 @@ app
         },
         store: new TypeormStore({
           cleanupLimit: 2,
-          ttl: 1000 * 60 * 60 * 24 * 30,
+          ttl: 60 * 60 * 24 * 30,
         }).connect(sessionRespository) as Store,
       })
     );