enable column search for welded treeviews

Change-Id: I017dc2e5270d86b2168faf3f9240eeded1fc3533
Reviewed-on: https://gerrit.libreoffice.org/51272Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sfx2/uiconfig/ui/loadtemplatedialog.ui

@@ -136,7 +136,7 @@
                             <property name="model">liststore1</property>
                             <property name="headers_visible">False</property>
                             <property name="headers_clickable">False</property>
-                            <property name="enable_search">False</property>
+                            <property name="search_column">0</property>
                             <property name="show_expanders">False</property>
                             <child internal-child="selection">
                               <object class="GtkTreeSelection" id="treeview-selection1"/>
@@ -203,7 +203,7 @@
                             <property name="model">liststore2</property>
                             <property name="headers_visible">False</property>
                             <property name="headers_clickable">False</property>
-                            <property name="enable_search">False</property>
+                            <property name="search_column">0</property>
                             <property name="show_expanders">False</property>
                             <child internal-child="selection">
                               <object class="GtkTreeSelection" id="treeview-selection2"/>

sfx2/uiconfig/ui/saveastemplatedlg.ui

@@ -178,7 +178,7 @@
                         <property name="model">categorylist</property>
                         <property name="headers_visible">False</property>
                         <property name="headers_clickable">False</property>
-                        <property name="enable_search">False</property>
+                        <property name="search_column">0</property>
                         <property name="show_expanders">False</property>
                         <child internal-child="selection">
                           <object class="GtkTreeSelection" id="treeview-selection1"/>

sw/uiconfig/swriter/ui/autoformattable.ui

@@ -137,7 +137,7 @@
                                     <property name="model">liststore1</property>
                                     <property name="headers_visible">False</property>
                                     <property name="headers_clickable">False</property>
-                                    <property name="enable_search">False</property>
+                                    <property name="search_column">0</property>
                                     <property name="show_expanders">False</property>
                                     <child internal-child="selection">
                                       <object class="GtkTreeSelection" id="treeview-selection1"/>

sw/uiconfig/swriter/ui/inserttable.ui

@@ -388,7 +388,6 @@
                                     <property name="model">liststore1</property>
                                     <property name="headers_visible">False</property>
                                     <property name="headers_clickable">False</property>
-                                    <property name="enable_search">False</property>
                                     <property name="search_column">0</property>
                                     <property name="show_expanders">False</property>
                                     <child internal-child="selection">