chore: configure eslint and prettier

.eslintrc.json

@@ -0,0 +1,38 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true
+  },
+  "extends": [
+    "eslint:recommended",
+    "plugin:react/recommended",
+    "plugin:@typescript-eslint/recommended",
+    "prettier"
+  ],
+  "overrides": [],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "ignorePatterns": ["node_modules", "dist"],
+  "plugins": ["react", "@typescript-eslint", "react-hooks", "prettier"],
+  "rules": {
+    "react/react-in-jsx-scope": "off",
+    "react/no-unescaped-entities": 0,
+    "react/prop-types": 0,
+    "camelcase": "error",
+    "@typescript-eslint/no-non-null-assertion": "off",
+    "@typescript-eslint/no-unused-vars": "error",
+    "no-duplicate-imports": "error",
+    "linebreak-style": ["warn", "unix"]
+  },
+  "settings": {
+    "react": {
+      "version": "detect"
+    },
+    "import/resolver": {
+      "typescript": {}
+    }
+  }
+}

.prettierignore

@@ -0,0 +1,11 @@
+# Ignore everything
+/*
+
+# Except these files & folders
+!/src
+!/.github
+!tsconfig.json
+!astro.config.mjs
+!package.json
+!.prettierrc
+!.eslintrc.json

.prettierrc

@@ -0,0 +1,11 @@
+{
+  "arrowParens": "avoid",
+  "semi": true,
+  "tabWidth": 2,
+  "printWidth": 80,
+  "singleQuote": false,
+  "jsxSingleQuote": false,
+  "trailingComma": "es5",
+  "bracketSpacing": true,
+  "endOfLine": "lf"
+}