[fractal] ui: Clean up deprecated margin props

[Daniel Garcia Moreno <danigm src gnome org>]

commit 5d29dffb43cfe507f31ebb63b85ac146499250bc
Author: Christopher Davis <brainblasted disroot org>
Date:   Sat Oct 31 13:24:50 2020 -0700

    ui: Clean up deprecated margin props
    
    margin-{left,right} have been deprecated in favor of
    margin-{start,end}. This commit handles that deprecation.

 fractal-gtk/res/ui/add_room_menu.ui | 4 ++--
 fractal-gtk/res/ui/filechooser.ui   | 4 ++--
 fractal-gtk/res/ui/join_room.ui     | 4 ++--
 fractal-gtk/res/ui/main_menu.ui     | 4 ++--
 fractal-gtk/res/ui/members.ui       | 4 ++--
 fractal-gtk/res/ui/message_menu.ui  | 4 ++--
 fractal-gtk/res/ui/new_room.ui      | 4 ++--
 fractal-gtk/res/ui/room_menu.ui     | 4 ++--
 8 files changed, 16 insertions(+), 16 deletions(-)
---
diff --git a/fractal-gtk/res/ui/add_room_menu.ui b/fractal-gtk/res/ui/add_room_menu.ui
index d9e90adb..edcb92b0 100644
--- a/fractal-gtk/res/ui/add_room_menu.ui
+++ b/fractal-gtk/res/ui/add_room_menu.ui
@@ -8,8 +8,8 @@
       <object class="GtkBox">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
-        <property name="margin_left">6</property>
-        <property name="margin_right">6</property>
+        <property name="margin_start">6</property>
+        <property name="margin_end">6</property>
         <property name="margin_top">6</property>
         <property name="margin_bottom">6</property>
         <property name="orientation">vertical</property>
diff --git a/fractal-gtk/res/ui/filechooser.ui b/fractal-gtk/res/ui/filechooser.ui
index 8764075c..6381441d 100644
--- a/fractal-gtk/res/ui/filechooser.ui
+++ b/fractal-gtk/res/ui/filechooser.ui
@@ -5,8 +5,8 @@
   <object class="GtkImage" id="file_chooser_preview">
     <property name="visible">True</property>
     <property name="can_focus">False</property>
-    <property name="margin_left">12</property>
-    <property name="margin_right">12</property>
+    <property name="margin_start">12</property>
+    <property name="margin_end">12</property>
     <property name="pixel_size">100</property>
     <property name="icon_name">camera-photo-symbolic</property>
     <property name="icon_size">6</property>
diff --git a/fractal-gtk/res/ui/join_room.ui b/fractal-gtk/res/ui/join_room.ui
index 87db4288..a04a0f12 100644
--- a/fractal-gtk/res/ui/join_room.ui
+++ b/fractal-gtk/res/ui/join_room.ui
@@ -38,8 +38,8 @@
           <object class="GtkGrid">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
-            <property name="margin_left">30</property>
-            <property name="margin_right">30</property>
+            <property name="margin_start">30</property>
+            <property name="margin_end">30</property>
             <property name="margin_top">30</property>
             <property name="margin_bottom">30</property>
             <property name="row_spacing">6</property>
diff --git a/fractal-gtk/res/ui/main_menu.ui b/fractal-gtk/res/ui/main_menu.ui
index 0f8a010e..0ec118a5 100644
--- a/fractal-gtk/res/ui/main_menu.ui
+++ b/fractal-gtk/res/ui/main_menu.ui
@@ -8,8 +8,8 @@
       <object class="GtkBox">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
-        <property name="margin_left">6</property>
-        <property name="margin_right">6</property>
+        <property name="margin_start">6</property>
+        <property name="margin_end">6</property>
         <property name="margin_top">6</property>
         <property name="margin_bottom">6</property>
         <property name="orientation">vertical</property>
diff --git a/fractal-gtk/res/ui/members.ui b/fractal-gtk/res/ui/members.ui
index 964ee39c..faa2e7b3 100644
--- a/fractal-gtk/res/ui/members.ui
+++ b/fractal-gtk/res/ui/members.ui
@@ -9,8 +9,8 @@
       <object class="GtkBox">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
-        <property name="margin_left">6</property>
-        <property name="margin_right">6</property>
+        <property name="margin_start">6</property>
+        <property name="margin_end">6</property>
         <property name="margin_top">6</property>
         <property name="margin_bottom">6</property>
         <property name="orientation">vertical</property>
diff --git a/fractal-gtk/res/ui/message_menu.ui b/fractal-gtk/res/ui/message_menu.ui
index a64616a3..29f69f88 100644
--- a/fractal-gtk/res/ui/message_menu.ui
+++ b/fractal-gtk/res/ui/message_menu.ui
@@ -8,8 +8,8 @@
       <object class="GtkBox">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
-        <property name="margin_left">6</property>
-        <property name="margin_right">6</property>
+        <property name="margin_start">6</property>
+        <property name="margin_end">6</property>
         <property name="margin_top">6</property>
         <property name="margin_bottom">6</property>
         <property name="orientation">vertical</property>
diff --git a/fractal-gtk/res/ui/new_room.ui b/fractal-gtk/res/ui/new_room.ui
index 8d000daa..5c050548 100644
--- a/fractal-gtk/res/ui/new_room.ui
+++ b/fractal-gtk/res/ui/new_room.ui
@@ -88,8 +88,8 @@
           <object class="GtkBox" id="new_room_box">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
-            <property name="margin_left">30</property>
-            <property name="margin_right">30</property>
+            <property name="margin_start">30</property>
+            <property name="margin_end">30</property>
             <property name="margin_top">30</property>
             <property name="margin_bottom">30</property>
             <property name="orientation">vertical</property>
diff --git a/fractal-gtk/res/ui/room_menu.ui b/fractal-gtk/res/ui/room_menu.ui
index 064dbe4c..6126d91b 100644
--- a/fractal-gtk/res/ui/room_menu.ui
+++ b/fractal-gtk/res/ui/room_menu.ui
@@ -8,8 +8,8 @@
       <object class="GtkBox">
         <property name="visible">True</property>
         <property name="can_focus">False</property>
-        <property name="margin_left">6</property>
-        <property name="margin_right">6</property>
+        <property name="margin_start">6</property>
+        <property name="margin_end">6</property>
         <property name="margin_top">6</property>
         <property name="margin_bottom">6</property>
         <property name="orientation">vertical</property>