Set up ESLint and Prettier (#12)

* Set up Prettier

* Set up ESLint

* Create .editorconfig

* Create pre-commit hook

* chore: add eslint rules link

.editorconfig

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+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+max_line_length = 80

.husky/pre-commit

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+npx lint-staged

.lintstagedrc.json

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+{
+  "*.{js,jsx,ts,tsx,mjs}": ["eslint --fix", "prettier --write"],
+  "*.{json,yml}": ["prettier --write"]
+}

.prettierrc.json

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+{
+  "tabWidth": 2,
+  "useTabs": false,
+  "semi": true,
+  "singleQuote": true,
+  "jsxSingleQuote": false,
+  "trailingComma": "es5",
+  "bracketSpacing": true,
+  "bracketSameLine": false,
+  "arrowParens": "avoid"
+}

eslint.config.mjs

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+import pluginJs from '@eslint/js';
+import eslintConfigPrettier from 'eslint-config-prettier';
+import globals from 'globals';
+
+export default [
+  { languageOptions: { globals: globals.browser } },
+  // Visit https://eslint.org/docs/latest/rules to learn more about these rules
+  pluginJs.configs.recommended,
+  eslintConfigPrettier,
+];