Actually commit the delete icon

resources/icons/ui/trash-alt.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!-- Font Awesome Free 5.15.3 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) --><path d="M32 464a48 48 0 0 0 48 48h288a48 48 0 0 0 48-48V128H32zm272-256a16 16 0 0 1 32 0v224a16 16 0 0 1-32 0zm-96 0a16 16 0 0 1 32 0v224a16 16 0 0 1-32 0zm-96 0a16 16 0 0 1 32 0v224a16 16 0 0 1-32 0zM432 32H312l-9.4-18.7A24 24 0 0 0 281.1 0H166.8a23.72 23.72 0 0 0-21.4 13.3L136 32H16A16 16 0 0 0 0 48v32a16 16 0 0 0 16 16h416a16 16 0 0 0 16-16V48a16 16 0 0 0-16-16z"/></svg>

resources/qml/MobileMessageContextPopup.qml

@@ -187,7 +187,7 @@ Item {
                 height: width
                 Layout.alignment: Qt.AlignHCenter
                 hoverEnabled: true
-                image: ":/icons/icons/ui/delete.png"
+                image: ":/icons/icons/ui/trash-alt.svg"
                 ToolTip.visible: hovered
                 ToolTip.text: qsTr("Remove")
                 onClicked: {