Treat device names as plaintext, not rich text

Summary:
Notifications, QML Text and QLabel accept a HTML subset,
which does not make sense for device names.

BUG: 382243

Test Plan:
Sent a pair request and accepted it, device name
now shown as plain text everywhere.

Reviewers: #kde_connect, albertvaka

Reviewed By: #kde_connect, albertvaka

Subscribers: #kde_connect

Differential Revision: https://phabricator.kde.org/D6640

daemon/kdeconnectd.cpp

@@ -46,7 +46,7 @@ public:
         KNotification* notification = new KNotification(QStringLiteral("pairingRequest"));
         notification->setIconName(QStringLiteral("dialog-information"));
         notification->setComponentName(QStringLiteral("kdeconnect"));
-        notification->setText(i18n("Pairing request from %1", getDevice(d->deviceLink()->deviceId())->name()));
+        notification->setText(i18n("Pairing request from %1", getDevice(d->deviceLink()->deviceId())->name()).toHtmlEscaped());
         notification->setActions(QStringList() << i18n("Accept") << i18n("Reject"));
         connect(notification, &KNotification::ignored, d, &PairingHandler::rejectPairing);
         connect(notification, &KNotification::action1Activated, d, &PairingHandler::acceptPairing);

kcm/kcm.ui

@@ -156,6 +156,9 @@
               <property name="text">
                <string>Device</string>
               </property>
+              <property name="textFormat">
+               <enum>Qt::PlainText</enum>
+              </property>
              </widget>
             </item>
             <item>

plasmoid/package/contents/ui/DeviceDelegate.qml

@@ -44,6 +44,7 @@ PlasmaComponents.ListItem
                 elide: Text.ElideRight
                 text: display
                 Layout.fillWidth: true
+                textFormat: Text.PlainText
             }
 
             //Find my phone