tdf#154042 Use an initial height of one row for toolbar layout

so the Toolbar positions this in the same place regardless of how many
rows it eventually shows

Change-Id: I7ec31e50557a099962fb051a1948781ef9abdfb6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/148402
Tested-by: Jenkins
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
diff --git a/sc/source/ui/app/inputwin.cxx b/sc/source/ui/app/inputwin.cxx
index e19de72..7f33e39 100644
--- a/sc/source/ui/app/inputwin.cxx
+++ b/sc/source/ui/app/inputwin.cxx
@@ -879,6 +879,11 @@ ScInputBarGroup::ScInputBarGroup(vcl::Window* pParent, ScTabViewShell* pViewSh)
    const SfxViewShell* pViewShell = SfxViewShell::Current();
    if (!comphelper::LibreOfficeKit::isActive() || !(pViewShell && pViewShell->isLOKMobilePhone()))
        mxButtonDown->show();

    // tdf#154042 Use an initial height of one row so the Toolbar positions
    // this in the same place regardless of how many rows it eventually shows
    Size aSize(GetSizePixel().Width(), nHeight);
    SetSizePixel(aSize);
}

void ScInputBarGroup::SetBackgrounds()