Update linter, dependencies.

.eslintrc.cjs

@@ -0,0 +1,54 @@
+module.exports = {
+  root: true,
+  plugins: [
+    '@typescript-eslint'
+  ],
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    project: true,
+    tsconfigRootDir: __dirname
+  },
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/recommended-type-checked',
+    'plugin:@typescript-eslint/stylistic-type-checked'
+  ],
+  rules: {
+    semi: 'off',
+    '@typescript-eslint/semi': [
+      'error',
+      'never'
+    ],
+    quotes: 'off',
+    '@typescript-eslint/quotes': [
+      'error',
+      'single'
+    ],
+    indent: 'off',
+    '@typescript-eslint/indent': [
+      'error',
+      4
+    ],
+    '@typescript-eslint/member-delimiter-style': [
+      'error',
+      {
+        multiline: {
+          delimiter: 'none',
+          requireLast: false
+        },
+        singleline: {
+          delimiter: 'comma',
+          requireLast: false
+        }
+      }
+    ],
+    '@typescript-eslint/no-non-null-assertion': 'off',
+    '@typescript-eslint/explicit-function-return-type': ['warn'],
+    '@typescript-eslint/restrict-template-expressions': 'off',
+    '@typescript-eslint/require-await': 'off',
+    '@typescript-eslint/no-unsafe-member-access': 'off',
+    '@typescript-eslint/no-unsafe-call': 'off',
+    '@typescript-eslint/consistent-indexed-object-style': 'off',
+    '@typescript-eslint/prefer-nullish-coalescing': 'off'
+  }
+}