[gnome-calculator] Use border for function and variable popovers (#76)

[Robert Roth <robertroth src gnome org>]

commit 714b428a28d4d1d9408a720f7308e0d686ea70ee
Author: Robert Roth <robert roth off gmail com>
Date:   Thu Oct 4 21:19:08 2018 +0300

    Use border for function and variable popovers (#76)

 src/math-function-popover.ui | 2 ++
 src/math-variable-popover.ui | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/src/math-function-popover.ui b/src/math-function-popover.ui
index 4f1859b3..b103dd4d 100644
--- a/src/math-function-popover.ui
+++ b/src/math-function-popover.ui
@@ -7,6 +7,7 @@
       <object class="GtkBox" id="vbox">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
+        <property name="border_width">6</property>
         <property name="orientation">vertical</property>
         <property name="spacing">6</property>
         <child>
@@ -74,3 +75,4 @@
     </child>
   </template>
 </interface>
+
diff --git a/src/math-variable-popover.ui b/src/math-variable-popover.ui
index 62ab1985..7a4c5d1a 100644
--- a/src/math-variable-popover.ui
+++ b/src/math-variable-popover.ui
@@ -7,8 +7,8 @@
       <object class="GtkBox" id="content">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
+        <property name="border_width">6</property>
         <property name="orientation">vertical</property>
-        <property name="margin">3</property>
         <property name="spacing">6</property>
         <child>
           <object class="GtkScrolledWindow" id="variable_list_scrolled">
@@ -31,6 +31,7 @@
           <object class="GtkBox" id="add_variable_box">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
+            <property name="spacing">6</property>
             <property name="orientation">horizontal</property>
             <child>
               <object class="GtkEntry" id="variable_name_entry">
@@ -65,3 +66,4 @@
     </child>
   </template>
 </interface>
+