qt: Rename "Edit label" to "Edit address label"

This makes it more specific what the action refers to.
(Suggested by Pieter Wuille)

src/qt/transactionview.cpp

@@ -172,7 +172,7 @@ TransactionView::TransactionView(const PlatformStyle *platformStyle, QWidget *pa
     QAction *copyTxIDAction = new QAction(tr("Copy transaction ID"), this);
     QAction *copyTxHexAction = new QAction(tr("Copy raw transaction"), this);
     QAction *copyTxPlainText = new QAction(tr("Copy full transaction details"), this);
-    QAction *editLabelAction = new QAction(tr("Edit label"), this);
+    QAction *editLabelAction = new QAction(tr("Edit address label"), this);
     QAction *showDetailsAction = new QAction(tr("Show transaction details"), this);
 
     contextMenu = new QMenu(this);