feat: add typescript project settings

This enables strongly typed checking within the current project. Consumers of this repo
will need to be sure they pass languageOptions.parserOptions.project, which points
to their tsconfig file to enable type checking rules.

Author: leviFrosty

README.md

@@ -61,17 +61,55 @@ with TypeScript:
 
 ```js
 const config = require('@silvermine/eslint-config'),
-      node = require('@silvermine/eslint-config/partials/node');
+      node = require('@silvermine/eslint-config/partials/node'),
+      typescript = require('@silvermine/eslint-config/partials/typescript');
 
 module.exports = [
-   ...config,
    {
-      files: [ '**/*.ts' ],
+      ...config,
+      {
+         ...typescript,
+         files: [ '**/*.ts' ],
+         languageOptions: {
+            ...typescript.languageOptions,
+            parserOptions: {
+               ...typescript.languageOptions.parserOptions,
+               project: 'tsconfig.json',
+            },
+         },
+      },
       ...node
    }
 ];
 ```
 
+Notice that we must specify the `project` property within `languageOptions.parserOptions`
+to enable TypeScript strongly typed linting.
+
+Below is an example of using Vue 3 with TypeScript:
+
+```js
+const config = require('@silvermine/eslint-config'),
+      vue = require('@silvermine/eslint-config/partials/vue');
+
+module.exports = [
+   {
+      ...config,
+      {
+         files: [ '**/*.vue' ],
+         ...vue,
+         languageOptions: {
+            ...vue.languageOptions,
+            parserOptions: {
+               ...vue.languageOptions.parserOptions,
+               project: 'tsconfig.json',
+            },
+         },
+      },
+   }
+];
+```
+
 Below is how you would configure a browser library that uses only vanilla JS:
 
 ```js

env.d.ts

@@ -0,0 +1,9 @@
+/* eslint-disable @typescript-eslint/triple-slash-reference */
+/// <reference types="vite/client" />
+
+declare module '*.vue' {
+   import { DefineComponent } from 'vue';
+   const component: DefineComponent<object, object, unknown>;
+
+   export default component;
+}

index.js

@@ -29,6 +29,13 @@ module.exports = [
    {
       files: [ '**/*.ts' ],
       ...typescript,
+      languageOptions: {
+         ...typescript.languageOptions,
+         parserOptions: {
+            ...typescript.languageOptions.parserOptions,
+            project: [ './tsconfig.node.json' ],
+         },
+      },
    },
    {
       files: [ '**/*.js', '**/*.cjs' ],
@@ -47,5 +54,13 @@ module.exports = [
          ...vueBaseRules,
          ...vue3rules,
       },
+      languageOptions: {
+         ...vueConfig.languageOptions,
+         parserOptions: {
+            ...vueConfig.languageOptions.parserOptions,
+            project: [ './tsconfig.web.json' ],
+            extraFileExtensions: [ '.vue' ],
+         },
+      },
    },
 ];