linting: consolidate rules

.eslintrc.js

@@ -6,11 +6,12 @@ module.exports = {
   },
   ignorePatterns: ['dist', 'coverage', 'packages/contracts/hardhat'],
   extends: ['plugin:prettier/recommended'],
-  parser: 'babel-eslint',
+  parser: '@babel/eslint-parser',
   parserOptions: {
     es6: true,
     ecmaVersion: 6,
     sourceType: 'module',
+    requireConfigFile: false,
   },
   plugins: [
     'eslint-plugin-import',
@@ -25,7 +26,7 @@ module.exports = {
       files: ['**/*.ts'],
       parser: '@typescript-eslint/parser',
       parserOptions: {
-        project: 'tsconfig.json',
+        project: './packages/**/tsconfig.json',
         sourceType: 'module',
         allowAutomaticSingleRunInference: true,
       },

.prettierrc.js

@@ -17,7 +17,7 @@ module.exports = {
         bracketSpacing: true,
         // These options are specific to the Solidity Plugin
         explicitTypes: 'always',
-        compiler: '0.8.9',
+        compiler: '>=0.8.10',
       },
     },
   ],

.prettierrc.json

-{
-  "$schema": "http://json.schemastore.org/prettierrc",
-  "trailingComma": "es5",
-  "tabWidth": 2,
-  "semi": false,
-  "singleQuote": true,
-  "arrowParens": "always"
-}