Some qmllint fixes

resources/qml/delegates/EncryptionEnabled.qml

@@ -4,7 +4,6 @@
 
 import ".."
 import QtQuick 2.15
-import QtQuick.Controls 2.15
 import QtQuick.Layouts 1.15
 import im.nheko 1.0
 
@@ -15,7 +14,6 @@ Rectangle {
 
     radius: fontMetrics.lineSpacing / 2 + Nheko.paddingMedium
     width: parent.width ? Math.min(parent.width, 700) : 0
-    anchors.horizontalCenter: parent.horizontalCenter
     height: contents.implicitHeight + Nheko.paddingMedium * 2
     color: palette.alternateBase
     border.color: Nheko.theme.green
@@ -31,8 +29,8 @@ Rectangle {
         Image {
             source: "image://colorimage/:/icons/icons/ui/shield-filled-checkmark.svg?" + Nheko.theme.green
             Layout.alignment: Qt.AlignVCenter
-            width: 24
-            height: width
+            Layout.preferredWidth: 24
+            Layout.preferredHeight: 24
         }
 
         Column {

resources/qml/pages/UserSettingsPage.qml

@@ -1,7 +1,7 @@
 // SPDX-FileCopyrightText: Nheko Contributors
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
-
+pragma ComponentBehavior: Bound
 import ".."
 import "../ui"
 import Qt.labs.platform 1.1 as Platform

resources/qml/voip/DeviceError.qml

@@ -5,9 +5,9 @@
 import QtQuick 2.9
 import QtQuick.Controls 2.3
 import QtQuick.Layouts 1.2
-import im.nheko 1.0
 
 Popup {
+    id: r
     property string errorString
     property var image
 
@@ -24,11 +24,11 @@ Popup {
         Image {
             Layout.preferredWidth: 16
             Layout.preferredHeight: 16
-            source: "image://colorimage/" + image + "?" + palette.windowText
+            source: "image://colorimage/" + r.image + "?" + palette.windowText
         }
 
         Label {
-            text: errorString
+            text: r.errorString
             color: palette.windowText
         }