[epiphany] Keep property names consistent with GTK documentation in ui files

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 3251aa61951943571c673377f3d272bc262ee68a
Author: Yetizone <andreii lisita gmail com>
Date:   Tue Oct 13 20:37:28 2020 +0300

    Keep property names consistent with GTK documentation in ui files

 src/resources/gtk/firefox-sync-dialog.ui | 6 +++---
 src/resources/gtk/history-dialog.ui      | 8 ++++----
 2 files changed, 7 insertions(+), 7 deletions(-)
---
diff --git a/src/resources/gtk/firefox-sync-dialog.ui b/src/resources/gtk/firefox-sync-dialog.ui
index 00f30468c..eed451d41 100644
--- a/src/resources/gtk/firefox-sync-dialog.ui
+++ b/src/resources/gtk/firefox-sync-dialog.ui
@@ -4,11 +4,11 @@
   <template class="EphyFirefoxSyncDialog" parent="HdyWindow">
     <property name="visible">True</property>
     <property name="modal">True</property>
-    <property name="window_position">center-on-parent</property>
+    <property name="window-position">center-on-parent</property>
     <property name="default-width">640</property>
     <property name="default-height">800</property>
-    <property name="destroy_with_parent">True</property>
-    <property name="type_hint">dialog</property>
+    <property name="destroy-with-parent">True</property>
+    <property name="type-hint">dialog</property>
     <child>
       <object class="GtkBox">
         <property name="visible">True</property>
diff --git a/src/resources/gtk/history-dialog.ui b/src/resources/gtk/history-dialog.ui
index 8d01a262f..c66d82995 100644
--- a/src/resources/gtk/history-dialog.ui
+++ b/src/resources/gtk/history-dialog.ui
@@ -4,13 +4,13 @@
   <requires lib="libhandy" version="0.0"/>
   <template class="EphyHistoryDialog" parent="HdyWindow">
     <!--property name="search_description" translatable="yes">Search history</property-->
-    <property name="can_focus">False</property>
+    <property name="can-focus">False</property>
     <property name="modal">True</property>
-    <property name="window_position">center-on-parent</property>
+    <property name="window-position">center-on-parent</property>
     <property name="default-width">640</property>
     <property name="default-height">800</property>
-    <property name="destroy_with_parent">True</property>
-    <property name="type_hint">dialog</property>
+    <property name="destroy-with_parent">True</property>
+    <property name="type-hint">dialog</property>
     <signal name="key-press-event" handler="on_key_press_event" swapped="no"/>
     <signal name="key-release-event" handler="on_key_release_event"/>
     <child>