Add .eslintrc.json

And fix issues

.eslintrc.json

@@ -0,0 +1,24 @@
+{
+    "root": true,
+    "env": {
+        "es2022": true,
+        "browser": true
+    },
+    "parserOptions": {
+        "ecmaVersion": 2022,
+        "sourceType": "module"
+    },
+    "extends": "eslint:recommended",
+    "rules": {
+        "semi": ["error", "never"],
+        "indent": ["warn", 4, { "flatTernaryExpressions": true, "SwitchCase": 1 }],
+        "quotes": ["warn", "single"],
+        "comma-dangle": ["warn", "always-multiline"],
+        "no-trailing-spaces": "warn",
+        "no-unused-vars": "warn",
+        "no-console": ["warn", { "allow": ["debug", "warn", "error", "assert"] }],
+        "no-constant-condition": ["error", { "checkLoops": false }],
+        "no-empty": ["error", { "allowEmptyCatch": true }]
+    },
+    "reportUnusedDisableDirectives": true
+}