fix quick replies from notifications (#4250)

While working on #4249 I noticed that quick replies also don't work as
expected. The notification just stays in the sending state forever.
There are actually 2 problems:
- Notifications are sent in `NotificationFetcher` with the id of the
Mastodon notification as tag and the current account id as id. The wrong
notification id was forwarded to `SendStatusBroadcastReceiver` so it
never had a chance of updating the notification.
- Notifications containing an active remote input can't be cancelled
(they just stop their animation when doing so). So instead I update the
notification with info that the reply is being sent and have it dismiss
automatically.

I also tried replacing the original notification with the "sending"
notification of `SendStatusService`, but that doesn't work because
`Service.startForeground` doesn't have a tag parameter, only an id.

---------

Co-authored-by: Willow <charlag@tuta.io>

app/src/main/java/com/keylesspalace/tusky/components/notifications/NotificationHelper.java

@@ -97,7 +97,7 @@ public class NotificationHelper {
 
     public static final String KEY_SENDER_ACCOUNT_FULL_NAME = "KEY_SENDER_ACCOUNT_FULL_NAME";
 
-    public static final String KEY_NOTIFICATION_ID = "KEY_NOTIFICATION_ID";
+    public static final String KEY_SERVER_NOTIFICATION_ID = "KEY_SERVER_NOTIFICATION_ID";
 
     public static final String KEY_CITED_STATUS_ID = "KEY_CITED_STATUS_ID";
 
@@ -412,7 +412,7 @@ public class NotificationHelper {
                 .putExtra(KEY_SENDER_ACCOUNT_ID, account.getId())
                 .putExtra(KEY_SENDER_ACCOUNT_IDENTIFIER, account.getIdentifier())
                 .putExtra(KEY_SENDER_ACCOUNT_FULL_NAME, account.getFullName())
-                .putExtra(KEY_NOTIFICATION_ID, notificationId)
+                .putExtra(KEY_SERVER_NOTIFICATION_ID, body.getId())
                 .putExtra(KEY_CITED_STATUS_ID, inReplyToId)
                 .putExtra(KEY_VISIBILITY, replyVisibility)
                 .putExtra(KEY_SPOILER, contentWarning)