fix: timestamp shows yesterday for a message received 3 days ago

- introduce one global update timer, to be used in various components
for date/time sensitive updates (StatusSharedUpdateTimer)
- this timer runs only when the app is/becomes active
- use the timer's `triggered()` signal to update the timestamp label
when needed; ie. if it's to display a relative timestamp and it's
currently visible

Fixes #11460

ui/StatusQ/src/StatusQ/Components/StatusTimeStampLabel.qml

@@ -12,7 +12,24 @@ StatusBaseText {
     color: Theme.palette.baseColor1
     font.pixelSize: 10
     visible: !!text
-    text: showFullTimestamp ? LocaleUtils.formatDateTime(timestamp) : LocaleUtils.formatRelativeTimestamp(timestamp)
+    text: d.formattedLabel
+
+    QtObject {
+        id: d
+        property string formattedLabel: showFullTimestamp ? LocaleUtils.formatDateTime(root.timestamp) : LocaleUtils.formatRelativeTimestamp(root.timestamp)
+
+        readonly property var _conn: Connections {
+            target: StatusSharedUpdateTimer
+            enabled: root.visible && root.timestamp && !root.showFullTimestamp
+            function onTriggered() {
+                const newFormattedLabel = LocaleUtils.formatRelativeTimestamp(root.timestamp)
+                if (newFormattedLabel !== d.formattedLabel) {
+                    d.formattedLabel = newFormattedLabel
+                }
+            }
+        }
+    }
+
     StatusToolTip {
         id: tooltip
         visible: hhandler.hovered && !!text

ui/StatusQ/src/StatusQ/Core/StatusSharedUpdateTimer.qml

@@ -0,0 +1,17 @@
+pragma Singleton
+
+import QtQml 2.15
+
+QtObject {
+    id: root
+
+    signal triggered
+
+    readonly property Timer d: Timer {
+        interval: 1000
+        running: Qt.application.state === Qt.ApplicationActive
+        repeat: true
+        triggeredOnStart: true
+        onTriggered: root.triggered()
+    }
+}

ui/StatusQ/src/StatusQ/Core/qmldir

@@ -13,5 +13,6 @@ StatusModalHeaderSettings 0.1 StatusModalHeaderSettings.qml
 StatusProfileImageSettings 0.1 StatusProfileImageSettings.qml
 StatusRollArea 0.1 StatusRollArea.qml
 StatusScrollView 0.1 StatusScrollView.qml
+StatusSharedUpdateTimer 0.1 StatusSharedUpdateTimer.qml
 StatusTooltipSettings 0.1 StatusTooltipSettings.qml
 singleton LocaleUtils 0.1 LocaleUtils.qml

ui/StatusQ/src/statusq.qrc

@@ -170,6 +170,7 @@
         <file>StatusQ/Core/StatusModalHeaderSettings.qml</file>
         <file>StatusQ/Core/StatusProfileImageSettings.qml</file>
         <file>StatusQ/Core/StatusRollArea.qml</file>
+        <file>StatusQ/Core/StatusSharedUpdateTimer.qml</file>
         <file>StatusQ/Core/StatusScrollView.qml</file>
         <file>StatusQ/Core/StatusTooltipSettings.qml</file>
         <file>StatusQ/Core/Theme/StatusColors.qml</file>