qml: add pagePrefix propery to leaf views to statisfy PageLoader in Qt6

Qt6 raise a warning when passing an initialization value to a non-existant
property in a component. At some point we may refactor theses view to inherit
from a common base. for now we just define the property where required

modules/gui/qt/maininterface/qml/MainViewLoader.qml

@@ -49,6 +49,9 @@ Widgets.StackViewExt {
     // view's model
     /* required */ property var model
 
+    // behave like a Page
+    property var pagePrefix: []
+
     // optional, loaded when isLoading is true
     property Component loadingComponent: null
 

modules/gui/qt/maininterface/qml/NoMedialibHome.qml

@@ -28,6 +28,9 @@ FocusScope {
     Accessible.role: Accessible.Client
     Accessible.name: I18n.qtr("Home view")
 
+    //behave like a Page
+    property var pagePrefix: []
+
     ColorContext {
         id: theme
         colorSet: ColorContext.View

modules/gui/qt/medialibrary/qml/MusicArtistsAlbums.qml

@@ -45,6 +45,9 @@ FocusScope {
     property int initialIndex: 0
     property int initialAlbumIndex: 0
 
+    //behave like a page
+    property var pagePrefix: []
+
     readonly property bool hasGridListMode: true
     readonly property bool isSearchable: true
 

modules/gui/qt/medialibrary/qml/MusicTrackListDisplay.qml

@@ -34,6 +34,8 @@ Widgets.KeyNavigableTableView {
 
     readonly property bool isSearchable: true
 
+    property var pagePrefix: []
+
     property alias searchPattern: rootmodel.searchPattern
     property alias sortOrder: rootmodel.sortOrder
     property alias sortCriteria: rootmodel.sortCriteria

modules/gui/qt/medialibrary/qml/MusicTracksDisplay.qml

@@ -31,6 +31,8 @@ FocusScope {
 
     readonly property bool hasGridListMode: false
 
+    property var pagePrefix: []
+
     property var sortModel: [
         { text: I18n.qtr("Title"),    criteria: "title"},
         { text: I18n.qtr("Album"),    criteria: "album_title" },

modules/gui/qt/medialibrary/qml/PlaylistMediaDisplay.qml

@@ -36,6 +36,9 @@ FocusScope {
 
     // Properties
 
+    //behave like a Page
+    property var pagePrefix: []
+
     readonly property bool hasGridListMode: false
     readonly property bool isSearchable: true
 

modules/gui/qt/network/qml/BrowseHomeDisplay.qml

@@ -53,6 +53,9 @@ FocusScope {
     readonly property bool hasGridListMode: true
     readonly property bool isSearchable: true
 
+    //behave like a Page
+    property var pagePrefix: []
+
     // Aliases
 
     property alias model: foldersSection.model

modules/gui/qt/network/qml/DiscoverUrlDisplay.qml

@@ -30,6 +30,9 @@ FocusScope {
 
     // Properties
 
+    //behave like a Page
+    property var pagePrefix: []
+
     readonly property bool hasGridListMode: false
     readonly property bool isSearchable: urlListDisplay.active
                                     && urlListDisplay.item.isSearchable !== undefined

modules/gui/qt/network/qml/ServicesManage.qml

@@ -30,6 +30,8 @@ Widgets.KeyNavigableListView {
     readonly property bool hasGridListMode: false
     readonly property bool isSearchable: true
 
+    property var pagePrefix: []
+
     model: ServicesDiscoveryModel {
         id: discoveryModel
 

modules/gui/qt/network/qml/ServicesSources.qml

@@ -34,6 +34,8 @@ MainInterface.MainGridView {
     readonly property bool hasGridListMode: false
     readonly property bool isSearchable: true
 
+    property var pagePrefix: []
+
     //signals
 
     signal browseServiceManage(int reason)

modules/gui/qt/player/qml/Player.qml

@@ -37,6 +37,9 @@ FocusScope {
 
     // Properties
 
+    //behave like a Page
+    property var pagePrefix: []
+
     property bool hasEmbededVideo: MainCtx.hasEmbededVideo
 
     readonly property int positionSliderY: controlBar.y + controlBar.sliderY