ci: install the npm lint dependencies

.idea/prettier.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PrettierConfiguration">
+    <option name="myConfigurationMode" value="AUTOMATIC" />
+    <option name="myRunOnSave" value="true" />
+    <option name="myFilesPattern" value="**/*.{html,css,scss,js,ts,cjs,cts,mjs,mts,json,yaml}" />
+  </component>
+</project>

.prettierrc

@@ -0,0 +1 @@
+{}

.stylelintrc.json

@@ -0,0 +1,3 @@
+{
+  "extends": ["stylelint-config-standard"]
+}

package.json

@@ -1,9 +1,16 @@
 {
   "dependencies": {
-    "tailwindcss": "^3.4.10"
+    "tailwindcss": "3.4.10"
   },
   "scripts": {
     "build": "tailwindcss -c src/styles/tailwind.config.js -i src/styles/tailwind.css -o assets/styles/tailwind_output.css",
     "watch": "npm run build -- --watch"
+  },
+  "devDependencies": {
+    "htmlhint": "1.1.4",
+    "markdownlint-cli": "0.43.0",
+    "prettier": "3.4.2",
+    "stylelint": "16.12.0",
+    "stylelint-config-standard": "36.0.1"
   }
 }