test: replace formatting rules with prettier config

as suggested here: https://typescript-eslint.io/rules/indent/

.eslintrc.cjs

@@ -1,28 +1,24 @@
-const tsConfig = require("./tsconfig.json");
+const tsConfig = require('./tsconfig.json');
 // const tsTestConfig = require('./tsconfig.test.json');
 module.exports = {
-	parserOptions: {
-		ecmaVersion: 2018,
-		sourceType: "module",
-	},
-	rules: {
-		semi: 2,
-		indent: ["error", 2],
-	},
-	overrides: [
-		{
-			extends: [
-				"eslint:recommended",
-				"plugin:@typescript-eslint/recommended",
-				"plugin:@typescript-eslint/recommended-requiring-type-checking",
-			],
-			files: tsConfig.include,
-			parser: "@typescript-eslint/parser",
-			parserOptions: {
-				project: ["./tsconfig.json"], // Specify it only for TypeScript files
-			},
-			plugins: ["@typescript-eslint/eslint-plugin", "eslint-plugin-tsdoc"],
-		},
-	],
-	ignorePatterns: ["sample", "**/node_modules/*.[tj]s", "**/dist/**/*.[tj]s"],
+  parserOptions: {
+    ecmaVersion: 2018,
+    sourceType: 'module',
+  },
+  overrides: [
+    {
+      extends: [
+        'eslint:recommended',
+        'plugin:@typescript-eslint/recommended',
+        'plugin:@typescript-eslint/recommended-requiring-type-checking',
+      ],
+      files: tsConfig.include,
+      parser: '@typescript-eslint/parser',
+      parserOptions: {
+        project: ['./tsconfig.json'],
+      },
+      plugins: ['@typescript-eslint/eslint-plugin', 'eslint-plugin-tsdoc'],
+    },
+  ],
+  ignorePatterns: ['sample', '**/node_modules/*.[tj]s', '**/dist/**/*.[tj]s'],
 };

.gitignore

@@ -5,6 +5,7 @@
 /yarn-error.log
 !.eslintrc.json
 !.eslintrc.cjs
+!.prettierrc
 !.eslintrc.test.json
 !.husky
 !.travis.yml

.prettierrc

@@ -0,0 +1,6 @@
+{
+  "trailingComma": "es5",
+  "tabWidth": 2,
+  "semi": true,
+  "singleQuote": true
+}