[FIX] web_editor, *: use explicit string keys for color maps

* website

```
$map: (
    test: 1,
    black: 2,
);
@​debug map-get($map, 'test');
@​debug map-get($map, test);
@​debug map-get($map, 'black');
@​debug map-get($map, black);
```

The above code leads to a:
1
1
null
2

This is because maps' keys can be *anything* in sass (even other maps).
In the example, the map is defined with unquoted `test` and `black` as
keys which are understood as the string 'test' and the *color* black.
When asking for the value for the 'black' string key... there isn't any.

This commit forces the use of quoted string as color maps' keys.

1 files changed, 11 insertions, 11 deletions

diff --git a/addons/web_editor/static/src/scss/web_editor.variables.scss b/addons/web_editor/static/src/scss/web_editor.variables.scss
index 769c53c1609..e20636dc58e 100644
--- a/addons/web_editor/static/src/scss/web_editor.variables.scss
+++ b/addons/web_editor/static/src/scss/web_editor.variables.scss
@@ -231,23 +231,23 @@ $o-color-palette-number: 1;
 // Theme colors
 $o-theme-color-palettes: (
     (
-        alpha: $o-enterprise-primary-color,
-        beta: $o-enterprise-color,
-        gamma: #5C5B80,
-        delta: #5B899E,
-        epsilon: #E46F78,
+        'alpha': $o-enterprise-primary-color,
+        'beta': $o-enterprise-color,
+        'gamma': #5C5B80,
+        'delta': #5B899E,
+        'epsilon': #E46F78,
     ),
 ) !default;
 $o-theme-color-palette-number: 1;
 
 // Greyscale transparent colours
 $o-transparent-grays: (
-    black-25: rgba(black, 0.25),
-    black-50: rgba(black, 0.5),
-    black-75: rgba(black, 0.75),
-    white-25: rgba(white, 0.25),
-    white-50: rgba(white, 0.5),
-    white-75: rgba(white, 0.75),
+    'black-25': rgba(black, 0.25),
+    'black-50': rgba(black, 0.5),
+    'black-75': rgba(black, 0.75),
+    'white-25': rgba(white, 0.25),
+    'white-50': rgba(white, 0.5),
+    'white-75': rgba(white, 0.75),
 ) !default;
 $o-gray-color-palettes: (
     (