fix: better icon and better reproduceable icon scripting

package-lock.json

@@ -75,6 +75,7 @@
         "eslint-plugin-i18next": "^6.1.3",
         "jsdom": "^28.0.0",
         "memfs": "^4.6.0",
+        "png-to-ico": "^3.0.1",
         "tsx": "^4.6.0",
         "typescript": "^5.3.0",
         "vite": "^7.3.1",
@@ -12320,6 +12321,51 @@
         "node": ">=10.4.0"
       }
     },
+    "node_modules/png-to-ico": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/png-to-ico/-/png-to-ico-3.0.1.tgz",
+      "integrity": "sha512-S8BOAoaGd9gT5uaemQ62arIY3Jzco7Uc7LwUTqRyqJDTsKqOAiyfyN4dSdT0D+Zf8XvgztgpRbM5wnQd7EgYwg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "^22.10.3",
+        "minimist": "^1.2.8",
+        "pngjs": "^7.0.0"
+      },
+      "bin": {
+        "png-to-ico": "bin/cli.js"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/png-to-ico/node_modules/@types/node": {
+      "version": "22.19.11",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.11.tgz",
+      "integrity": "sha512-BH7YwL6rA93ReqeQS1c4bsPpcfOmJasG+Fkr6Y59q83f9M1WcBRHR2vM+P9eOisYRcN3ujQoiZY8uk5W+1WL8w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~6.21.0"
+      }
+    },
+    "node_modules/png-to-ico/node_modules/undici-types": {
+      "version": "6.21.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/pngjs": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/pngjs/-/pngjs-7.0.0.tgz",
+      "integrity": "sha512-LKWqWJRhstyYo9pGvgor/ivk2w94eSjE3RGVuzLGlr3NmD8bf7RcYGze1mNdEHRP6TRP6rMuDHk5t44hnTRyow==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.19.0"
+      }
+    },
     "node_modules/postcss": {
       "version": "8.5.6",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.6.tgz",