plugins/screencast: Drop "stream" in ScreenCastStream::streamReady

The word "stream" is redundant.

src/plugins/screencast/screencastmanager.cpp

@@ -126,7 +126,7 @@ void ScreencastManager::integrateStreams(ScreencastStreamV1Interface *waylandStr
         waylandStream->sendClosed();
         stream->deleteLater();
     });
-    connect(stream, &ScreenCastStream::streamReady, stream, [waylandStream](uint nodeid) {
+    connect(stream, &ScreenCastStream::ready, stream, [waylandStream](uint nodeid) {
         waylandStream->sendCreated(nodeid);
     });
     if (!stream->init()) {

src/plugins/screencast/screencaststream.cpp

@@ -89,7 +89,7 @@ void ScreenCastStream::onStreamStateChanged(pw_stream_state old, pw_stream_state
     case PW_STREAM_STATE_PAUSED:
         if (nodeId() == 0 && m_pwStream) {
             m_pwNodeId = pw_stream_get_node_id(m_pwStream);
-            Q_EMIT streamReady(nodeId());
+            Q_EMIT ready(nodeId());
         }
         m_source->pause();
         break;

src/plugins/screencast/screencaststream.h

@@ -75,7 +75,7 @@ public Q_SLOTS:
     bool includesCursor(Cursor *cursor) const;
 
 Q_SIGNALS:
-    void streamReady(quint32 nodeId);
+    void ready(quint32 nodeId);
     void closed();
 
 private: