fix: invalid message header size (#13372)

ui/StatusQ/src/StatusQ/Components/StatusMessageHeader.qml

@@ -39,12 +39,13 @@ Item {
         id: layout
         spacing: 4
         width: parent.width
-        StatusBaseText {
 
+        StatusBaseText {
             id: primaryDisplayName
-            Layout.fillWidth: true
             objectName: "StatusMessageHeader_DisplayName"
             verticalAlignment: Text.AlignVCenter
+            Layout.fillWidth: true
+            Layout.maximumWidth: implicitWidth
             Layout.bottomMargin: 2 // offset for the underline to stay vertically centered
             font.weight: Font.Medium
             font.underline: mouseArea.containsMouse
@@ -192,5 +193,9 @@ Item {
                 text: "•"
             }
         }
+
+        Item {
+            Layout.fillWidth: true
+        }
     }
 }