tech: plug in eslint and prettier

Author: samgqroberts

.eslintignore

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+node_modules

.eslintrc.js

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+module.exports = {
+    root: true,
+    parser: '@typescript-eslint/parser',
+    plugins: [
+        'simple-import-sort',
+        '@typescript-eslint',
+        'prettier',
+        'react',
+        'react-hooks'
+    ],
+    parserOptions: {
+      ecmaVersion: 2020,
+      sourceType: 'module',
+      ecmaFeatures: {
+        jsx: true
+      }
+    },
+    settings: {
+      react: {
+        version: 'detect'
+      }
+    },
+    env: {
+      browser: true,
+      amd: true,
+      node: true
+    },
+    extends: [
+      'eslint:recommended',
+      'plugin:@typescript-eslint/eslint-recommended',
+      'plugin:@typescript-eslint/recommended',
+      'plugin:react/recommended',
+      'plugin:jsx-a11y/recommended',
+      'plugin:prettier/recommended' // Make sure this is always the last element in the array.
+    ],
+    rules: {
+      'prettier/prettier': ['error', {}, { usePrettierrc: true }],
+      'react/react-in-jsx-scope': 'off',
+      'react/prop-types': 'off',
+      '@typescript-eslint/explicit-function-return-type': 'off',
+      'simple-import-sort/imports': 'error',
+      'jsx-a11y/anchor-is-valid': [
+        'error',
+        {
+          components: ['Link'],
+          specialLink: ['hrefLeft', 'hrefRight'],
+          aspects: ['invalidHref', 'preferButton']
+        }
+      ]
+    }
+  };

.prettierignore

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+node_modules

.prettierrc

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+{
+    "printWidth": 120,
+    "singleQuote": true,
+    "trailingComma": "all",
+    "semi": true
+}

.vscode/settings.json

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+{
+    "[typescript]": {
+        "editor.tabSize": 2
+    },
+    "editor.codeActionsOnSave": {
+        "source.fixAll.eslint": true
+    },
+    "eslint.validate": ["typescript"]
+}