chore: drop "eslint-plugin-prettier" dependency

- `npm run lint` now checks formatting with prettier and eslint
- `npm run fixlint` now fixes formatting with `prettier --write` and `eslint --fix`
- lint-staged also uses `npm run fixlint` to keep things consistent
- ci seems to already check formatting with prettier and eslint
- added jsdoc type hints to the eslintrc.js file for autocompletion

Eslint now uses a blocklist instead of allowlist for ignoring files. It might be easier to not
accidentally ignore any new files with this approach.

Solves #445

Author: mikavilpas

.eslintrc.js

@@ -1,12 +1,25 @@
+/**
+ * @type {import('eslint').Linter.LegacyConfig}
+ */
 module.exports = {
   extends: ['airbnb-base', 'plugin:@typescript-eslint/recommended', 'prettier'],
-  plugins: ['unicorn', 'import', 'prettier', '@typescript-eslint'],
+  plugins: ['unicorn', 'import', '@typescript-eslint'],
   parser: '@typescript-eslint/parser',
   parserOptions: {
     project: './tsconfig.json',
     ecmaVersion: 'latest',
     sourceType: 'module',
   },
+  ignorePatterns: [
+    '.eslintrc.js',
+    'packages/*/lib/',
+    'packages/*/bin/',
+    'packages/neovim/scripts/',
+    'packages/integration-tests/__tests__/',
+    'examples/rplugin/node/',
+    'packages/example-plugin/',
+    'packages/example-plugin-decorators/',
+  ],
   env: {
     node: true,
     es2024: true,
@@ -66,9 +79,6 @@ module.exports = {
     'no-shadow': 'off',
     'prefer-destructuring': 'off', // Intentionally disabled trash.
 
-    // prettier things
-    'prettier/prettier': 'error',
-
     'import/extensions': 'off',
     'import/prefer-default-export': 'off',
 

package-lock.json

@@ -18,7 +18,6 @@
     "eslint-config-airbnb-base": "^15.0.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-import": "^2.29.1",
-    "eslint-plugin-prettier": "^5.1.3",
     "eslint-plugin-unicorn": "^50.0.1",
     "husky": "^9.1.4",
     "lint-staged": "^15.2.10",
@@ -34,7 +33,8 @@
     "test-staged": "npm run test-staged --workspaces --if-present -- --",
     "test-missing-apis": "npm run test-missing-apis --workspaces --if-present",
     "test-lint": "npm run lint",
-    "lint": "eslint --format=unix packages/*/src/**/*.ts packages/*/src/*.ts"
+    "lint": "prettier --check . && eslint --format=unix .",
+    "fixlint": "prettier --write . && eslint --fix --format=unix ."
   },
   "husky": {
     "hooks": {
@@ -43,7 +43,7 @@
   },
   "lint-staged": {
     "*.{ts,js}": [
-      "eslint --fix",
+      "npm run fixlint",
       "npm run test-staged"
     ]
   },