[geary: 2/2] Merge branch 'ui-extended-fields' into 'mainline'

[Michael Gratton <mjog src gnome org>]

commit 164f52c5fd62580666728e7a627d871171b6554b
Merge: 8149f976 7753d0a7
Author: Michael Gratton <mike vee net>
Date:   Wed Jan 8 10:08:47 2020 +0000

    Merge branch 'ui-extended-fields' into 'mainline'
    
    composer: Better UI for Cc/Bcc/Reply-To fields
    
    See merge request GNOME/geary!393

 src/client/composer/composer-widget.vala |  14 +-
 ui/composer-menus.ui                     |  12 -
 ui/composer-widget.ui                    | 472 ++++++++++++++++++++-----------
 3 files changed, 316 insertions(+), 182 deletions(-)
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