feat: Add eslint package (#7)

packages/eslint-config-pancake/README.md

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+# eslint-config-pancake
+
+Pancake Eslint config with:
+
+- Airbnb config
+- Typescript
+- Prettier
+
+## Usage
+
+```
+npx install-peerdeps --dev @pancakeswap-libs/eslint-config-pancake
+```
+
+Add `"extends": "@pancakeswap-libs/eslint-config-pancake"` to your eslint config file.

packages/eslint-config-pancake/lib/index.js

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+module.exports = {
+  root: true,
+  parser: "@typescript-eslint/parser",
+  parserOptions: {
+    ecmaVersion: 2017,
+    ecmaFeatures: {
+      jsx: true,
+    },
+  },
+  env: {
+    es6: true,
+    browser: true,
+  },
+  settings: {
+    "import/resolver": {
+      node: {
+        extensions: [".js", ".ts", ".jsx", ".tsx"],
+      },
+    },
+    "import/extensions": [".js", ".ts", ".jsx", ".tsx"],
+  },
+  extends: [
+    "airbnb",
+    "airbnb/hooks",
+    "prettier",
+    "prettier/react",
+    "prettier/@typescript-eslint",
+    "plugin:@typescript-eslint/recommended",
+  ],
+  rules: {
+    // Typescript
+    "@typescript-eslint/no-unused-vars": "warn",
+    "no-use-before-define": "off",
+    "@typescript-eslint/no-use-before-define": ["warn"],
+    "no-shadow": "off",
+    "@typescript-eslint/no-shadow": ["error"],
+    // React
+    "react/jsx-filename-extension": ["error", { extensions: [".tsx"] }],
+    "react/prop-types": 0,
+    "react/jsx-props-no-spreading": 0,
+    "react/no-multi-comp": 0,
+    "import/extensions": [
+      "error",
+      "ignorePackages",
+      {
+        js: "never",
+        mjs: "never",
+        jsx: "never",
+        ts: "never",
+        tsx: "never",
+      },
+    ],
+  },
+};

packages/eslint-config-pancake/package.json

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+{
+  "name": "@pancakeswap-libs/eslint-config-pancake",
+  "version": "1.0.0",
+  "description": "Eslint config for PancakeSwap",
+  "main": "lib/index.js",
+  "files": [
+    "lib"
+  ],
+  "repository": "git@github.com:pancakeswap/eslint-config-pancake.git",
+  "license": "MIT",
+  "author": "RabbitDoge",
+  "private": false,
+  "dependencies": {
+    "@typescript-eslint/eslint-plugin": "^4.7.0",
+    "@typescript-eslint/parser": "^4.7.0",
+    "eslint-config-airbnb": "^18.2.1",
+    "eslint-config-prettier": "^6.15.0",
+    "eslint-plugin-import": "^2.22.1",
+    "eslint-plugin-jsx-a11y": "^6.4.1",
+    "eslint-plugin-react": "^7.21.5",
+    "eslint-plugin-react-hooks": "^4.0.0"
+  },
+  "peerDependencies": {
+    "eslint": "^7.2.0",
+    "prettier": "^2.1.2"
+  }
+}