[gnome-games] ui: Don't use 'construct set' where possible

[Alexander Mikhaylenko <alexm src gnome org>]

commit c829fad9dd4185c966fc474b84c68b948652bae1
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Thu Aug 22 02:15:21 2019 +0500

    ui: Don't use 'construct set' where possible
    
    If a property is not going to change, just use 'construct' instead.

 src/ui/collection-box.vala   | 2 +-
 src/ui/collection-view.vala  | 2 +-
 src/ui/display-view.vala     | 2 +-
 src/ui/preferences-page.vala | 1 -
 4 files changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/src/ui/collection-box.vala b/src/ui/collection-box.vala
index 00ed2d25..e1f96981 100644
--- a/src/ui/collection-box.vala
+++ b/src/ui/collection-box.vala
@@ -4,7 +4,7 @@
 private class Games.CollectionBox : Gtk.Box {
        public signal void game_activated (Game game);
 
-       public ListModel collection { get; construct set; }
+       public ListModel collection { get; construct; }
        public bool search_mode { get; set; }
        public bool loading_notification { get; set; }
 
diff --git a/src/ui/collection-view.vala b/src/ui/collection-view.vala
index 517164fb..ab2f1bb1 100644
--- a/src/ui/collection-view.vala
+++ b/src/ui/collection-view.vala
@@ -32,7 +32,7 @@ private class Games.CollectionView : Object, UiView {
                }
        }
 
-       public Gtk.Window window { get; construct set; }
+       public Gtk.Window window { get; construct; }
        public ListModel collection { get; construct; }
 
        public bool loading_notification { get; set; }
diff --git a/src/ui/display-view.vala b/src/ui/display-view.vala
index 399d1098..a65f909e 100644
--- a/src/ui/display-view.vala
+++ b/src/ui/display-view.vala
@@ -36,7 +36,7 @@ private class Games.DisplayView : Object, UiView {
                }
        }
 
-       public Gtk.Window window { get; construct set; }
+       public Gtk.Window window { get; construct; }
 
        public bool is_fullscreen { get; set; }
 
diff --git a/src/ui/preferences-page.vala b/src/ui/preferences-page.vala
index 16b6b28b..f34449bf 100644
--- a/src/ui/preferences-page.vala
+++ b/src/ui/preferences-page.vala
@@ -5,7 +5,6 @@ private class Games.PreferencesPage : Gtk.Bin, Gtk.Buildable {
        public PreferencesSubpage subpage { get; protected set; }
        public string title { get; construct set; }
 
-
        [GtkChild]
        private Gtk.Label error_label;
        [GtkChild]