private void AddTabs(StringEditor stringEditor)
        {
            stringEditor.NextThatStartsWith("    <div class=\"toolbar\">");
            stringEditor.NextThatStartsWith("    </div>");
            stringEditor.Next();
            stringEditor.Next();

            stringEditor.InsertLine("    <mat-tab-group mat-align-tabs=\"start\">");
            stringEditor.InsertLine("        <mat-tab label=\"Stammdaten\">");

            stringEditor.NextThatStartsWith("</div>");

            stringEditor.InsertLine("        </mat-tab>");
            stringEditor.InsertLine("    </mat-tab-group>");

            stringEditor.AddPrefixBetweenLinesThatContain("        ", "<mat-tab label=\"Stammdaten\">", " </mat-tab>");
        }