Remove all reference to --external-assets, broken feature

src/test/generateKeycloakThemeResources.ts

@@ -12,7 +12,6 @@ generateKeycloakThemeResources({
     "themeName": "keycloakify-demo-app",
     "reactAppBuildDirPath": pathJoin(sampleReactProjectDirPath, "build"),
     "keycloakThemeBuildingDirPath": pathJoin(sampleReactProjectDirPath, "build_keycloak_theme"),
-    "mode": "standalone",
     "urlPathname": "/keycloakify-demo-app/"
 });
 

src/test/replaceImportFromStatic.ts

@@ -19,8 +19,7 @@ const { fixedJsCode } = replaceImportsFromStaticInJsCode({
                 3: "0664cdc0"
             }[e] + ".chunk.js"
         }
-    `,
-    "mode": "standalone"
+    `
 });
 
 console.log({ fixedJsCode });