[FIX] web_editor, website: review grays

What was designed as a new feature appeared as a regression: users were
not able to choose a bootstrap gray as a background color anymore but
instead got the possibiility to choose a hardcoded gray. This commit
restores the use of the custom gray palette that themes can customize
and which automatically uses the correct text color when used as a
background. This also allows to remove ugly inline style from snippet
definitions and allows to solve bugs like the described below one:

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Also add bg-* classes on snippet cards:
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Snippet cards are often put (or may be put by the user) in an element
which have a bg-* class on it. This means that the card will still have
a white background (as chosen by BS4 by default) but the text color will
be adapted to that ancestor bg-* classed element.

This commit forces the card background color (as suggested by BS4) with
bg-* classes.

closes odoo/odoo#27637

1 files changed, 1 insertions, 1 deletions

diff --git a/addons/web_editor/static/src/scss/web_editor.ui.scss b/addons/web_editor/static/src/scss/web_editor.ui.scss
index f9c30b62c6f..3d465ae18ee 100644
--- a/addons/web_editor/static/src/scss/web_editor.ui.scss
+++ b/addons/web_editor/static/src/scss/web_editor.ui.scss
@@ -904,7 +904,7 @@ table.colorpicker {
             clear: both;
         }
 
-        > button {
+        button {
             float: left;
             height: 25px;
             width: 25px;