[geary: 4/4] Merge branch 'sidebar-improvments' into 'mainline'

[Michael Gratton <mjog src gnome org>]

commit 1ad29a9be910464697cfa25bc242fb42c34de464
Merge: 0f760d7aa 8aa5f291e
Author: Michael Gratton <mike vee net>
Date:   Thu Jan 7 22:29:05 2021 +0000

    Merge branch 'sidebar-improvments' into 'mainline'
    
    Modernize folder list (without rewrite)
    
    Closes #880 and #1029
    
    See merge request GNOME/geary!618

 .../folder-list/folder-list-account-branch.vala    |  2 +-
 src/client/meson.build                             |  1 +
 src/client/sidebar/sidebar-expander-renderer.vala  | 38 +++++++++
 src/client/sidebar/sidebar-tree.vala               | 89 +++++++---------------
 ui/application-main-window.ui                      |  1 -
 ui/geary.css                                       | 10 ++-
 6 files changed, 77 insertions(+), 64 deletions(-)
---
diff --cc ui/application-main-window.ui
index 1b41310d6,a62ad616c..f3c014757
--- a/ui/application-main-window.ui
+++ b/ui/application-main-window.ui
@@@ -49,10 -49,9 +49,9 @@@
                              <property name="can_focus">False</property>
                              <property name="vexpand">True</property>
                              <property name="label_xalign">0</property>
 -                            <property name="shadow_type">in</property>
 +                            <property name="shadow_type">none</property>
                              <child>
                                <object class="GtkScrolledWindow" id="folder_list_scrolled">
-                                 <property name="width_request">100</property>
                                  <property name="visible">True</property>
                                  <property name="can_focus">True</property>
                                  <property name="hscrollbar_policy">never</property>