feat(Linphone/Timeline): display a shadow below tooltip

tests/ui/modules/Common/Styles/PopupStyle.qml

@@ -15,9 +15,9 @@ QtObject {
 
   property QtObject shadow: QtObject {
     property color color: Colors.l
-    property int horizontalOffset: 4
-    property int radius: 8
+    property int horizontalOffset: 2
+    property int radius: 10
     property int samples: 15
-    property int verticalOffset: 4
+    property int verticalOffset: 2
   }
 }

tests/ui/modules/Common/Tooltip/Tooltip.qml

@@ -80,6 +80,11 @@ ToolTip {
   background: Item {
     id: container
 
+    layer {
+      enabled: true
+      effect: PopupShadow {}
+    }
+
     Rectangle {
       anchors {
         fill: parent

tests/ui/modules/Linphone/Chat/Chat.qml

@@ -62,7 +62,7 @@ ColumnLayout {
             // Cast section to integer because Qt converts the
             // $dateSection in string!!!
             text: new Date(+section).toLocaleDateString(
-              Qt.locale()
+              Qt.locale(App.locale())
             )
           }
         }
@@ -144,7 +144,7 @@ ColumnLayout {
             color: ChatStyle.entry.time.color
             font.pointSize: ChatStyle.entry.time.fontSize
             text: new Date($timestamp).toLocaleString(
-              Qt.locale(),
+              Qt.locale(App.locale()),
               'hh:mm'
             )
             verticalAlignment: Text.AlignVCenter

tests/ui/modules/Linphone/Timeline.qml

@@ -95,7 +95,6 @@ ColumnLayout {
         usernameColor: view.currentIndex === index
           ? TimelineStyle.contact.username.color.selected
           : TimelineStyle.contact.username.color.normal
-      }
 
         Loader {
           anchors.fill: parent
@@ -105,6 +104,7 @@ ColumnLayout {
             )
           }
         }
+      }
 
       MouseArea {
         anchors.fill: parent