Minor ui changes in calc sidebar

1. removal of ambiguous button width in sidebarnumberformat.ui
2. addition of spacing between indent label and indent buttons in sidebaralignment.ui

Change-Id: I41fc4f9bdfb2a1a1909d014f6039c73bbdfe9c4a
Reviewed-on: https://gerrit.libreoffice.org/17145Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
Tested-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>

sc/uiconfig/scalc/ui/sidebaralignment.ui

@@ -157,6 +157,7 @@
                   <object class="GtkGrid" id="grid2">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
+                    <property name="column_spacing">6</property>
                     <child>
                       <object class="sfxlo-SidebarToolBox" id="indentbuttons">
                         <property name="visible">True</property>

sc/uiconfig/scalc/ui/sidebarnumberformat.ui

@@ -53,7 +53,6 @@
                 <child>
                   <object class="GtkToolButton" id="currency">
                     <property name="use_action_appearance">False</property>
-                    <property name="width_request">30</property>
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="action_name">.uno:NumberFormatCurrency</property>