Improve contextual actions for the FeedList and EntryLists

This adds "select all", "deselect all" to the page contextual actions
and adds "show podcast info" to the OverlayPage opened by clicking on
the overflow menu button on the cards.
This also adds correct use of plurals for the actions if more than one
item has been selected.

src/qml/FeedListDelegate.qml

@@ -246,17 +246,26 @@ Controls.ItemDelegate {
         header: Kirigami.Heading {
             text: feed.name
             level: 2
-            wrapMode: Text.Wrap
+            elide: Text.ElideRight
         }
 
         contentItem: ColumnLayout {
-            RowLayout {
+                Kirigami.BasicListItem {
-                Layout.preferredWidth: Kirigami.Units.gridUnit * 20
+                    Layout.fillWidth: true
-                spacing: 0
+                    leftPadding: Kirigami.Units.smallSpacing
+                    rightPadding: 0
+                    onClicked: {
+                        while(pageStack.depth > 1)
+                            pageStack.pop()
+                        pageStack.push("qrc:/FeedDetailsPage.qml", {"feed": feed});
+                        actionOverlay.close();
+                    }
+                    icon: "help-about-symbolic"
+                    text: i18n("Podcast Details")
+                }
 
                 Kirigami.BasicListItem {
                     Layout.fillWidth: true
-                    Layout.preferredHeight: Kirigami.Units.gridUnit * 2
                     leftPadding: Kirigami.Units.smallSpacing
                     rightPadding: 0
                     onClicked: {
@@ -269,7 +278,6 @@ Controls.ItemDelegate {
                     icon: "delete"
                     text: i18n("Remove Podcast")
                 }
-            }
 
         }
     }

src/qml/FeedListPage.qml

@@ -226,9 +226,27 @@ Kirigami.ScrollablePage {
 
         // For lack of a better place, we put generic entry list actions here so
         // they can be re-used across the different ListViews.
+        property var selectAllAction: Kirigami.Action {
+            iconName: "edit-select-all"
+            text: i18n("Select All")
+            visible: true
+            onTriggered: {
+                feedList.selectionModel.select(feedList.model.index(0, 0), ItemSelectionModel.ClearAndSelect | ItemSelectionModel.Columns);
+            }
+        }
+
+        property var selectNoneAction: Kirigami.Action {
+            iconName: "edit-select-none"
+            text: i18n("Deselect All")
+            visible: feedList.selectionModel.hasSelection
+            onTriggered: {
+                feedList.selectionModel.clearSelection();
+            }
+        }
+
         property var deleteFeedAction: Kirigami.Action {
             iconName: "delete"
-            text: i18n("Remove Podcast")
+            text: i18np("Remove Podcast", "Remove Podcasts", feedList.selectionForContextMenu.length)
             visible: feedList.selectionModel.hasSelection
             onTriggered: {
                 // First get an array of pointers to the feeds to be deleted
@@ -255,13 +273,15 @@ Kirigami.ScrollablePage {
             visible: feedList.selectionModel.hasSelection && (feedList.selectionForContextMenu.length == 1)
             onTriggered: {
                 while(pageStack.depth > 1)
-                    pageStack.pop()
+                    pageStack.pop();
-                pageStack.push("qrc:/FeedDetailsPage.qml", {"feed": feedList.selectionForContextMenu[0].model.data(feedList.selectionForContextMenu[0], FeedsModel.FeedRole)})
+                pageStack.push("qrc:/FeedDetailsPage.qml", {"feed": feedList.selectionForContextMenu[0].model.data(feedList.selectionForContextMenu[0], FeedsModel.FeedRole)});
             }
         }
 
         property var contextualActionList: [feedDetailsAction,
-                                            deleteFeedAction]
+                                            deleteFeedAction,
+                                            selectAllAction,
+                                            selectNoneAction]
 
         property Controls.Menu contextMenu: Controls.Menu {
             id: contextMenu

src/qml/GenericEntryListView.qml

@@ -204,7 +204,7 @@ ListView {
     }
 
     property var deleteEnclosureAction: Kirigami.Action {
-        text: i18n("Delete Download")
+        text: i18np("Delete Download", "Delete Downloads", selectionForContextMenu.length)
         icon.name: "delete"
         visible: listView.selectionModel.hasSelection && (singleSelectedEntry ? (singleSelectedEntry.hasEnclosure ? singleSelectedEntry.enclosure.status !== Enclosure.Downloadable : false) : true)
         onTriggered: {