Add icons and better alignment for buttons

samba/filepropertiesplugin/qml/ChangePassword.qml

@@ -113,6 +113,7 @@ Kirigami.OverlaySheet {
 
             QQC2.Button {
                 id: passButton
+                icon.name: "dialog-ok"
                 text: i18nc("@action:button creates a new samba user with the user-specified password", "Set Password")
                 enabled: isAcceptable()
                 Layout.alignment: Qt.AlignRight

samba/filepropertiesplugin/qml/UserPage.qml

@@ -75,6 +75,8 @@ Before you can access shares with your current user account you need to set a Sa
         }
 
         QQC2.Button {
+            Layout.alignment: Qt.AlignHCenter
+            icon.name: "lock"
             text: i18nc("@action:button opens dialog to create new user", "Create Samba password")
             onClicked: changePassword.openAndClear()
         }