Http2: Adjust send window also on inactive streams

Fixes an issue where a stream isn't active _yet_, but will be.
So it also needs to know about the adjusted window size.

Pick-to: 6.8
Change-Id: I752760e4c99bac36580b3b8d0ed510baf2905529
Reviewed-by: Mate Barany <mate.barany@qt.io>

src/network/access/qhttp2connection.cpp

@@ -1937,7 +1937,7 @@ bool QHttp2Connection::acceptSetting(Http2::Settings identifier, quint32 newValu
         qCDebug(qHttp2ConnectionLog, "[%p] Adjusting initial window size for %zu streams by %d",
                 this, size_t(m_streams.size()), delta);
         for (const QPointer<QHttp2Stream> &stream : std::as_const(m_streams)) {
-            if (!stream || !stream->isActive())
+            if (!stream)
                 continue;
             qint32 sum = 0;
             if (qAddOverflow(stream->m_sendWindow, delta, &sum)) {