asset pour le fond

angular.json

             "tsConfig": "tsconfig.app.json",
             "inlineStyleLanguage": "scss",
             "assets": [
+              "src/favicon.ico",
+              "src/assets",
               {
                 "glob": "**/*",
-                "input": "public"
+                "input": "public",
+                "output": "/assets"
               }
             ],
             "styles": [