i18n fixes

- use plural forms where needed
- add various i18n semantic markers
- fix string puzzles
- translate UI visible texts
- style fixes

src/qml/ConnectionDetailsPage.qml

@@ -27,7 +27,7 @@ import org.kde.kpublictransport 1.0
 
 Kirigami.Page
 {
-    title: i18n("Details")
+    title: i18nc("@title", "Details")
 
     property var journey
 
@@ -48,7 +48,7 @@ Kirigami.Page
     Component {
         id: walking
         Label {
-            text: i18n("Walking (%1 minutes)", theData.duration / 60)
+            text: i18np("Walking (%1 minute)", "Walking (%1 minutes)", theData.duration / 60)
             anchors.fill: parent
             horizontalAlignment: Text.AlignHCenter
         }

src/qml/ConnectionsPage.qml

@@ -27,7 +27,7 @@ import org.kde.kpublictransport 1.0 as KPT
 
 Kirigami.Page
 {
-    title: i18n("Connections")
+    title: i18nc("@title", "Connections")
 
     header: Kirigami.InlineMessage {
         type: Kirigami.MessageType.Error
@@ -46,7 +46,7 @@ Kirigami.Page
         }
 
         header: Button {
-            text: i18n("Earlier")
+            text: i18nc("@action:button", "Earlier")
             width: parent.width
             visible: theModel.canQueryPrevious
             onClicked: theModel.queryPrevious()
@@ -58,11 +58,11 @@ Kirigami.Page
 
             RowLayout {
                 Label {
-                text: journey.sections[0].scheduledDepartureTime.toLocaleTimeString(Locale.ShortFormat) + " - " + journey.sections[journey.sections.length - 1].scheduledArrivalTime.toLocaleTimeString(Locale.ShortFormat)
+                text: i18n("%1 - %2", journey.sections[0].scheduledDepartureTime.toLocaleTimeString(Locale.ShortFormat), journey.sections[journey.sections.length - 1].scheduledArrivalTime.toLocaleTimeString(Locale.ShortFormat))
                 }
 
                 Label {
-                    text: "(" + _formatter.formatDuration(journey.duration) + ")"
+                    text: i18n("(%1)", _formatter.formatDuration(journey.duration))
                     Layout.fillWidth: !delayLabel.visible
                 }
 
@@ -75,14 +75,14 @@ Kirigami.Page
                 }
 
                 Label {
-                    text: journey.numberOfChanges + " changes"
+                    text: i18np("%1 change", "%2 changes", journey.numberOfChanges)
                     visible: journey.numberOfChanges > 0
                 }
             }
         }
 
         footer: Button {
-            text: i18n("Later")
+            text: i18nc("@action:button", "Later")
             width: parent.width
             visible: theModel.canQueryNext
             onClicked: theModel.queryNext()

src/qml/DatePickerButton.qml

@@ -54,12 +54,12 @@ Button {
 
         footer: RowLayout {
             Button {
-                text: i18n("Cancel")
+                text: i18nc("@action:button", "Cancel")
                 Layout.fillWidth: true
                 onClicked: dialog.reject()
             }
             Button {
-                text: i18n("Accept")
+                text: i18nc("@action:button", "Accept")
                 Layout.fillWidth: true
                 onClicked: dialog.accept()
             }

src/qml/StartPage.qml

@@ -27,11 +27,11 @@ Kirigami.Page
 {
     id: rootPage
 
-    title: i18n("Start journey")
+    title: i18nc("@title", "Start Journey")
 
     actions.main: Kirigami.Action {
         icon.name: "search"
-        text: i18n("Search")
+        text: i18nc("@action", "Search")
         enabled: _queryController.start.name != "" && _queryController.destination.name != ""
         onTriggered: pageStack.push(Qt.resolvedUrl("ConnectionsPage.qml"))
     }
@@ -53,17 +53,17 @@ Kirigami.Page
         }
         Button {
             Layout.fillWidth: true
-            text: _queryController.start.name ? _queryController.start.name : i18n("Pick start")
-            onClicked: pageStack.push(Qt.resolvedUrl("LocationQueryPage.qml"), {title: i18n("Search for start location"), callback: startPicked})
+            text: _queryController.start.name ? _queryController.start.name : i18nc("@action:button", "Pick Start")
+            onClicked: pageStack.push(Qt.resolvedUrl("LocationQueryPage.qml"), {title: i18nc("@title", "Search for Start Location"), callback: startPicked})
         }
 
         Label {
-            text: "To:"
+            text: i18n("To:")
         }
         Button {
             Layout.fillWidth: true
-            text: _queryController.destination.name ? _queryController.destination.name : i18n("Pick destination")
-            onClicked: pageStack.push(Qt.resolvedUrl("LocationQueryPage.qml"), {title: i18n("Search for destination location"), callback: destinationPicked})
+            text: _queryController.destination.name ? _queryController.destination.name : i18nc("@action:button", "Pick Destination")
+            onClicked: pageStack.push(Qt.resolvedUrl("LocationQueryPage.qml"), {title: i18nc("@title", "Search for Destination Location"), callback: destinationPicked})
         }
 
         Label {

src/qml/TimePickerButton.qml

@@ -52,12 +52,12 @@ Button {
 
         footer: RowLayout {
             Button {
-                text: i18n("Cancel")
+                text: i18nc("@action:button", "Cancel")
                 Layout.fillWidth: true
                 onClicked: dialog.reject()
             }
             Button {
-                text: i18n("Accept")
+                text: i18nc("@action:button", "Accept")
                 Layout.fillWidth: true
                 onClicked: dialog.accept()
             }