calvados-cd14: use asset for header and emails logo (#51799)

static/calvados-cd14/_custom.scss

@@ -40,8 +40,7 @@ a#publik-portal-agent {
 			a {
 				box-sizing: content-box;
 				padding-top: 1rem;
-				background: url(img/logo-calvados-transparent.png) bottom left no-repeat;
-				background-size: 233px 46px;
+				background-position: bottom;
 				width: 233px;
 				height: 46px;
 				display: block;

static/calvados-cd14/config.json

@@ -2,6 +2,14 @@
   "label": "Calvados (CD14)",
   "variables": {
     "theme_color": "#48b95f",
-    "email_header_img": "img/logo-calvados-transparent.png"
+    "email_header_asset": "emails:logo"
+  },
+  "settings": {
+    "combo": {
+      "COMBO_ASSET_SLOTS.update": {
+        "header:logo": { "label": "Têtière : logo" },
+        "emails:logo": { "label": "Emails : logo" }
+      }
+    }
   }
 }