tdf#159221 Fix color scheme names under Gtk3 (Basic IDE)

Color scheme names were not appearing in the "Color Scheme" dialog in the Basic IDE under gtk3 (View - Color Scheme).

This patch fixes that.

Change-Id: I9b019f3ed867ca6f45b53d67a3dc01139251391e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/162215
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
diff --git a/basctl/uiconfig/basicide/ui/colorscheme.ui b/basctl/uiconfig/basicide/ui/colorscheme.ui
index 709f946..7cc51fd 100644
--- a/basctl/uiconfig/basicide/ui/colorscheme.ui
+++ b/basctl/uiconfig/basicide/ui/colorscheme.ui
@@ -4,10 +4,10 @@
  <requires lib="gtk+" version="3.24"/>
  <object class="GtkListStore" id="liststore1">
    <columns>
      <!-- column-name id -->
      <column type="gchararray"/>
      <!-- column-name scheme -->
      <column type="gchararray"/>
      <!-- column-name id -->
      <column type="gchararray"/>
    </columns>
  </object>
  <object class="GtkDialog" id="ColorSchemeDialog">
@@ -179,6 +179,9 @@
                          <object class="GtkTreeViewColumn">
                            <child>
                              <object class="GtkCellRendererText" id="rendertext"/>
                              <attributes>
                                <attribute name="text">0</attribute>
                              </attributes>
                            </child>
                          </object>
                        </child>