Added programmer role and fixed snackbar not showing

lib/providers/pass_slip_provider.dart

@@ -16,9 +16,10 @@ final passSlipsProvider = StreamProvider<List<PassSlip>>((ref) {
   if (profile == null) return Stream.value(const <PassSlip>[]);
 
   final isAdmin = profile.role == 'admin' || profile.role == 'dispatcher';
+  final hasFullAccess = isAdmin || profile.role == 'programmer';
 
   final wrapper = StreamRecoveryWrapper<PassSlip>(
-    stream: isAdmin
+    stream: hasFullAccess
         ? client
               .from('pass_slips')
               .stream(primaryKey: ['id'])
@@ -30,7 +31,7 @@ final passSlipsProvider = StreamProvider<List<PassSlip>>((ref) {
               .order('requested_at', ascending: false),
     onPollData: () async {
       final query = client.from('pass_slips').select();
-      final data = isAdmin
+      final data = hasFullAccess
           ? await query.order('requested_at', ascending: false)
           : await query
                 .eq('user_id', profile.id)