Don't show messages from Ignored nodes (#11068)

* Honor Node Ignore messages

* Screenless node fix

src/mesh/MeshService.cpp

@@ -257,8 +257,8 @@ void MeshService::handleToRadio(meshtastic_MeshPacket &p)
                   p.to != NODENUM_BROADCAST && p.to != 0) // DM only
               {
                   perhapsDecode(&p);
-                  const StoredMessage &sm = messageStore.addFromPacket(p);
-                  graphics::MessageRenderer::handleNewMessage(nullptr, sm, p); // notify UI
+                  if (const StoredMessage *sm = messageStore.tryAddFromPacket(p))
+                      graphics::MessageRenderer::handleNewMessage(nullptr, *sm, p); // notify UI
               })
 #if !MESHTASTIC_EXCLUDE_ADMIN
     // Note admin requests on their way out: AdminModule only accepts a response from a remote we

src/mesh/NodeDB.cpp

@@ -3268,6 +3268,9 @@ void NodeDB::addFromContact(meshtastic_SharedContact contact)
             LOG_WARN(PROTECTED_CAP_WARN_FMT, "ignore", contact.node_num, MAX_NUM_NODES - 2);
         nodeInfoLiteSetBit(info, NODEINFO_BITFIELD_IS_FAVORITE_MASK, false);
         eraseNodeSatellites(contact.node_num);
+#if HAS_SCREEN || defined(MESHTASTIC_INCLUDE_NICHE_GRAPHICS)
+        messageStore.deleteAllMessagesFromNode(contact.node_num);
+#endif
     } else {
         /* Clients are sending add_contact before every text message DM (because clients may hold a larger node database with
          * public keys than the radio holds). However, we don't want to update last_heard just because we sent someone a DM!