refactor: code hygiene (#235)

* refactor: convert eslint config file

* deps: bump eslint

* deps: remove bluebird

* refactor: remove dead code

* refactor: remove unused dependencies

* refactor: consistent styling

.eslintrc

@@ -0,0 +1,37 @@
+{
+  "root": true,
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended"
+  ],
+  "plugins": [
+    "@typescript-eslint"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "env": {
+    "node": true,
+    "es2022": true
+  },
+  "rules": {
+    "no-control-regex": "off",
+    "@typescript-eslint/no-var-requires": "off",
+    "@typescript-eslint/no-explicit-any": "warn"
+  },
+  "ignorePatterns": ["src/sauce.config.mjs"],
+  "overrides": [
+    {
+      "files": ["tests/**/*.js"],
+      "plugins": ["jest"],
+      "env": {
+        "jest": true
+      },
+      "rules": {
+        "jest/no-disabled-tests": "warn",
+        "jest/no-focused-tests": "error",
+        "jest/no-identical-title": "error",
+        "jest/prefer-to-have-length": "warn",
+        "jest/valid-expect": "error"
+      }
+    }
+  ]
+}