fixed get channel fetch so channels get printed

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lib/console_ui.dart

@@ -686,7 +686,7 @@ Future<void> mainMenuUi(Store node) async {
       // the main menu
       int option = showMenu(['Display feed',     // 1 
                              'Post/Reply/Like',  // 2
-                          //   'Public Channels',  // 3
+                             'Public Channels',  // 3
                              'Private Messages', // 4
                              'Other Options',    // 5
                              'Quit'],            // 6
@@ -730,19 +730,19 @@ Future<void> mainMenuUi(Store node) async {
           await sendReplyPostLike(node, replyToId, replyKind, content);
           break;
 
-        case 9:
+        case 3:
           await channelMenuUI(node);
           break;
 
-        case 3:
+        case 4:
           await PrivateMenuUI(node);
           break;
 
-        case 4:
+        case 5:
           await otherMenuUi(node);
           break;
 
-        case 5:
+        case 6:
         default:
           userContinue = false;
           String authorName = getAuthorName(userPublicKey);

lib/event_ds.dart

@@ -255,12 +255,20 @@ class EventData {
     return decrypted;
   }
 
-  // only applicable for kind 42 event
+  // only applicable for kind 42 event; returns the channel 40 id of which the event is part of
   String getChannelIdForMessage() {
     if( kind != 42) {
       return "";
     }
-    return getParent();
+
+    // get first e tag, which should be the channel of which this is part of
+    for( int i = 0; i < tags.length; i++) {
+      List tag = tags[i];
+      if( tag[0] == 'e') {
+        return tag[1];
+      }
+    }
+    return '';
   }
 
   // prints event data in the format that allows it to be shown in tree form by the Tree class