[geary: 7/7] Merge branch 'mjog/responsive-layout-fixes' into 'mainline'

[Michael Gratton <mjog src gnome org>]

commit d62a88bfdf55c13e1ef95cc49577baf17bdfa62f
Merge: 3af0d6286 791b747fb
Author: Michael Gratton <mike vee net>
Date:   Wed Apr 14 09:29:38 2021 +0000

    Merge branch 'mjog/responsive-layout-fixes' into 'mainline'
    
    Responsive layout fixes
    
    See merge request GNOME/geary!692

 .../application/application-main-window.vala       | 64 ++++++++++++++++------
 src/client/sidebar/sidebar-tree.vala               | 35 +++---------
 ui/application-main-window.ui                      |  2 +
 3 files changed, 57 insertions(+), 44 deletions(-)
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