[ui] disable "unused-export-let" warning; make eslint config "eslintrc.js"

webui/.eslintrc.js

@@ -0,0 +1,29 @@
+module.exports = {
+  env: {
+    browser: true,
+    es2021: true,
+  },
+  extends: ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
+  parser: "@typescript-eslint/parser",
+  parserOptions: {
+    ecmaVersion: "latest",
+    sourceType: "module",
+  },
+  plugins: ["svelte3", "@typescript-eslint"],
+  overrides: [
+    {
+      files: ["*.svelte"],
+      processor: "svelte3/svelte3",
+    },
+  ],
+  rules: {
+    "@typescript-eslint/no-unused-vars": [
+      "warn",
+      { argsIgnorePattern: "^_", varsIgnorePattern: "^_" },
+    ],
+  },
+  settings: {
+    "svelte3/typescript": true, // load TypeScript as peer dependency
+    "svelte3/ignore-warnings": (w) => w.code == "unused-export-let",
+  },
+};

webui/.eslintrc.json

@@ -1,28 +0,0 @@
-{
-  "env": {
-    "browser": true,
-    "es2021": true
-  },
-  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
-  "parser": "@typescript-eslint/parser",
-  "parserOptions": {
-    "ecmaVersion": "latest",
-    "sourceType": "module"
-  },
-  "plugins": ["svelte3", "@typescript-eslint"],
-  "overrides": [
-    {
-      "files": ["*.svelte"],
-      "processor": "svelte3/svelte3"
-    }
-  ],
-  "rules": {
-    "@typescript-eslint/no-unused-vars": [
-      "warn",
-      { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_" }
-    ]
-  },
-  "settings": {
-    "svelte3/typescript": true // load TypeScript as peer dependency
-  }
-}