Fixed issue where self-sends didn't auto download.

1) There was an issue where we wouldn't auto-download group syncs.
2) There was another issue where we didn't show the download controls
   for messages you sent yourself.

Fixed #7920

src/org/thoughtcrime/securesms/ConversationItem.java

@@ -413,7 +413,7 @@ public class ConversationItem extends LinearLayout
   }
 
   private void setMediaAttributes(MessageRecord messageRecord) {
-    boolean showControls = !messageRecord.isFailed() && (!messageRecord.isOutgoing() || messageRecord.isPending());
+    boolean showControls = !messageRecord.isFailed();
 
     if (hasSharedContact(messageRecord)) {
       sharedContactStub.get().setVisibility(VISIBLE);

src/org/thoughtcrime/securesms/util/AttachmentUtil.java

@@ -106,7 +106,7 @@ public class AttachmentUtil {
     try (Cursor messageCursor = DatabaseFactory.getMmsDatabase(context).getMessage(attachment.getMmsId())) {
       final MessageRecord message = DatabaseFactory.getMmsDatabase(context).readerFor(messageCursor).getNext();
 
-      if (message == null || !message.getRecipient().isSystemContact()) {
+      if (message == null || (!message.getRecipient().isSystemContact() && !message.isOutgoing() && !Util.isOwnNumber(context, message.getRecipient().getAddress()))) {
         return true;
       }
     }