Improve SEO in nginx.conf, index.html; update favicon and logos; embedded card now supported; Dockerfile slimmed and modernized

package.json

@@ -57,19 +57,23 @@
     "babel-loader": "^10.0.0",
     "babel-preset-react-app": "^10.1.0",
     "browserslist": "^4.28.1",
+    "copy-webpack-plugin": "^14.0.0",
     "css-loader": "^7.1.4",
     "css-minimizer-webpack-plugin": "^8.0.0",
     "file-loader": "^6.2.0",
     "fork-ts-checker-webpack-plugin": "^9.1.0",
     "html-webpack-plugin": "^5.6.6",
+    "image-minimizer-webpack-plugin": "^5.0.0",
     "mini-css-extract-plugin": "^2.10.0",
     "postcss": "^8.5.8",
     "postcss-loader": "^8.2.1",
     "sass": "^1.97.3",
     "sass-loader": "^16.0.7",
     "sass-migrator": "^2.5.7",
+    "sharp": "^0.35.4",
     "source-map-loader": "^5.0.0",
     "style-loader": "^4.0.0",
+    "svgo": "^4.1.0",
     "terser-webpack-plugin": "^5.3.17",
     "ts-loader": "^9.5.4",
     "ts-node": "^10.9.2",