Linting, prettier and postcss setup

package.json

@@ -6,9 +6,36 @@
     "dev": "astro dev",
     "build": "astro build",
     "preview": "astro preview",
-    "astro": "astro"
+    "astro": "astro",
+    "lint": "eslint . --ext .js,.ts,.astro",
+    "lint:fix": "eslint . --ext .js,.ts,.astro --fix"
   },
   "dependencies": {
+    "@fontsource-variable/geist": "^5.2.6",
+    "@fontsource/blaka": "^5.2.6",
+    "@fontsource/iosevka": "^5.2.5",
+    "@fontsource/iosevka-aile": "^5.2.5",
     "astro": "^5.13.5"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.34.0",
+    "@typescript-eslint/eslint-plugin": "^8.41.0",
+    "@typescript-eslint/parser": "^8.41.0",
+    "astro-eslint-parser": "^1.2.2",
+    "cssnano": "^7.1.1",
+    "eslint": "^9.34.0",
+    "eslint-plugin-astro": "^1.3.1",
+    "eslint-plugin-markdown": "^5.1.0",
+    "eslint-plugin-mdx": "^3.6.2",
+    "postcss": "^8.5.6",
+    "postcss-import": "^16.1.1",
+    "postcss-nesting": "^13.0.2",
+    "postcss-preset-env": "^10.3.1",
+    "postcss-utilities": "^0.8.4",
+    "prettier": "^3.6.2",
+    "stylelint": "^16.23.1",
+    "stylelint-config-clean-order": "^7.0.0",
+    "stylelint-config-html": "^1.1.0",
+    "stylelint-config-standard": "^39.0.0"
   }
-}
+}