Move AudioPage.qml into separate directory

This encapsulates the page and separates it and the files it uses from
the rest of the application.

advancedSettings.pro

@@ -135,7 +135,7 @@ DISTFILES += \
     src/res/qml/speaker_on.svg \
     src/res/qml/qmldir \
     src/res/qml/AccessibilityPage.qml \
-    src/res/qml/AudioPage.qml \
+    src/res/qml/audio_page/* \
     src/res/qml/ChaperonePage.qml \
     src/res/qml/ChaperoneWarningsPage.qml \
     src/res/qml/FixFloorPage.qml \

src/res/qml/RootPage.qml

@@ -4,6 +4,7 @@ import QtQuick.Layouts 1.3
 import matzman666.advsettings 1.0
 import "." // QTBUG-34418, singletons require explicit import to load qmldir file
 import "utilities_page"
+import "audio_page"
 
 MyStackViewPage {
     id: rootPage
@@ -342,7 +343,7 @@ MyStackViewPage {
                            Layout.leftMargin: 12
                            checkable: true
                            contentItem: Image {
-                               source: parent.checked ? "mic_off.svg" : "mic_on.svg"
+                               source: parent.checked ? "audio_page/mic_off.svg" : "audio_page/mic_on.svg"
                                sourceSize.width: 32
                                sourceSize.height: 32
                                anchors.fill: parent

src/res/qml/audio_page/AudioPage.qml

@@ -2,7 +2,7 @@ import QtQuick 2.7
 import QtQuick.Controls 2.0
 import QtQuick.Layouts 1.3
 import matzman666.advsettings 1.0
-
+import ".."
 
 MyStackViewPage {
     width: 1200

src/res/qml/mainwidget.qml

@@ -2,6 +2,7 @@ import QtQuick 2.7
 import QtQuick.Controls 2.0
 import QtQuick.Layouts 1.0
 import "utilities_page"
+import "audio_page"
 
 Rectangle {
     id: root