gui: Show permissions instead of whitelisted

Show detailed permissions instead of legacy "whitelisted" flag.
These are formatted with `&` in between just like services flags.
It reuses the "N/A" translation message if not.
This removes the one-but-last use of `legacyWhitelisted`.

Author: laanwj

src/qt/forms/debugwindow.ui

@@ -1082,12 +1082,12 @@
                <item row="0" column="0">
                 <widget class="QLabel" name="label_30">
                  <property name="text">
-                  <string>Whitelisted</string>
+                  <string>Permissions</string>
                  </property>
                 </widget>
                </item>
                <item row="0" column="1">
-                <widget class="QLabel" name="peerWhitelisted">
+                <widget class="QLabel" name="peerPermissions">
                  <property name="cursor">
                   <cursorShape>IBeamCursor</cursorShape>
                  </property>

src/qt/rpcconsole.cpp

@@ -1120,7 +1120,15 @@ void RPCConsole::updateNodeDetail(const CNodeCombinedStats *stats)
     ui->peerSubversion->setText(QString::fromStdString(stats->nodeStats.cleanSubVer));
     ui->peerDirection->setText(stats->nodeStats.fInbound ? tr("Inbound") : tr("Outbound"));
     ui->peerHeight->setText(QString::number(stats->nodeStats.nStartingHeight));
-    ui->peerWhitelisted->setText(stats->nodeStats.m_legacyWhitelisted ? tr("Yes") : tr("No"));
+    if (stats->nodeStats.m_permissionFlags == PF_NONE) {
+        ui->peerPermissions->setText(tr("N/A"));
+    } else {
+        QStringList permissions;
+        for (const auto& permission : NetPermissions::ToStrings(stats->nodeStats.m_permissionFlags)) {
+            permissions.append(QString::fromStdString(permission));
+        }
+        ui->peerPermissions->setText(permissions.join(" & "));
+    }
     ui->peerMappedAS->setText(stats->nodeStats.m_mapped_as != 0 ? QString::number(stats->nodeStats.m_mapped_as) : tr("N/A"));
 
     // This check fails for example if the lock was busy and