Allow merging object with custom type under new eslint rules

Using the spread operator on class instances will lose their class prototype  @typescript-eslint/no-misused-spread

package.json

@@ -85,15 +85,15 @@
       "hljs-enhance": "~2.0"
    },
    "devDependencies": {
-      "@eslint/js": "~9.17",
+      "@eslint/js": "~9.18",
       "@fortawesome/fontawesome-free": "~6.7",
       "@types/node": "~22.10",
       "add-dist-header": "~1.4",
       "assert-deep-strict-equal": "~1.2",
       "copy-file-util": "~1.2",
       "copy-folder-util": "~1.1",
       "csso-cli": "~4.0",
-      "eslint": "~9.17",
+      "eslint": "~9.18",
       "esm-to-plain-js": "~1.1",
       "jshint": "~2.13",
       "less": "~4.2",
@@ -102,7 +102,7 @@
       "rimraf": "~6.0",
       "run-scripts-util": "~1.3",
       "typescript": "~5.7",
-      "typescript-eslint": "~8.19",
+      "typescript-eslint": "~8.20",
       "uglify-js": "~3.19",
       "w3c-html-validator": "~1.8"
    }

src/js/lib-x.ts

@@ -921,7 +921,7 @@ const libXAnimate = {
          intervalMsec: 10000,  //10 seconds between transitions
          fadeMsec:     3000,   //3 seconds to complete transition
          };
-      const settings = { ...defaults, ...options };
+      const settings = { ...defaults, ...options };  //eslint-disable-line @typescript-eslint/no-misused-spread
       container.classList.add('montage-loop');
       if (!container.children.length)
          console.error('[montage-loop] No images found:', container);