chore: bump version to 1.3.6 and remove unused dependencies

- Remove `react-email`, `react-grid-layout` from dependencies
- Remove `tailwindcss`, `@tailwindcss/cli`, `@tailwindcss/postcss`,
  `autoprefixer`, `postcss`, and `typescript` from devDependencies
- Update package-lock.json to reflect dependency removals
- Bump package version from 1.3.5 to 1.3.6

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@zen/core",
-  "version": "1.3.5",
+  "version": "1.3.6",
   "description": "Un CMS construit sur l'essentiel, rien de plus, rien de moins.",
   "repository": {
     "type": "git",
@@ -32,21 +32,13 @@
     "dotenv": "^16.4.5",
     "node-cron": "^3.0.3",
     "pg": "^8.11.3",
-    "react-email": "^4.3.0",
-    "react-grid-layout": "^1.5.2",
     "resend": "^3.2.0",
     "stripe": "^14.0.0"
   },
   "devDependencies": {
-    "@tailwindcss/cli": "^4.2.1",
-    "@tailwindcss/postcss": "^4",
-    "autoprefixer": "^10.4.0",
-    "postcss": "^8.4.0",
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
-    "tailwindcss": "^4",
-    "tsup": "^8.0.0",
-    "typescript": "^5.0.0"
+    "tsup": "^8.0.0"
   },
   "peerDependencies": {
     "next": ">=14.0.0",