[gnome-todo] style: Simplify CSS and add border to active row

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 5e0f67d8d4c3e73db1fbc9719a55a8c15e7e10c2
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Tue Sep 4 18:20:16 2018 -0300

    style: Simplify CSS and add border to active row
    
    As per IRC suggestions.

 data/theme/Adwaita.css | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)
---
diff --git a/data/theme/Adwaita.css b/data/theme/Adwaita.css
index 83fccfe..55c5512 100644
--- a/data/theme/Adwaita.css
+++ b/data/theme/Adwaita.css
@@ -63,13 +63,10 @@ taskrow { border-radius: 3px;}
 taskrow:dir(ltr) { padding-left: 6px;  }
 taskrow:dir(rtl) { padding-right: 6px; }
 
-taskrow { transition: all 150ms cubic-bezier(0.25, 0.46, 0.45, 0.94); }
-taskrow:hover { transition: none; }
-taskrow:backdrop { transition: 200ms ease-out; }
-taskrow.activatable:hover { background-color: alpha(@theme_fg_color, 0.07); }
-taskrow.activatable.active { background-color: alpha(@theme_fg_color, 0.07); }
-taskrow.activatable:active { box-shadow: inset 0 2px 2px -2px alpha(black, 0.8); }
-taskrow.activatable:backdrop:hover { background-color: transparent; }
+taskrow.active {
+  background-color: @theme_bg_color;
+  border: solid 1px @borders;
+}
 
 /* task title entry */
 taskrow entry { border: none; background: none; }