Migrate to Sätteri md renderer

package.json

@@ -1,7 +1,7 @@
 {
   "name": "c0ntroller.de",
   "type": "module",
-  "version": "1.0.1",
+  "version": "1.1.0",
   "engines": {
     "node": ">=22.12.0"
   },
@@ -12,7 +12,6 @@
     "astro": "astro"
   },
   "dependencies": {
-    "@astrojs/markdown-remark": "^7.3.0",
     "@astrojs/mdx": "^8.0.0",
     "@iconify-json/lucide": "^1.2.98",
     "@iconify-json/simple-icons": "^1.2.74",
@@ -21,9 +20,9 @@
     "astro-icon": "^1.1.5",
     "astro-mermaid": "^2.1.0",
     "mermaid": "^11.17.2",
-    "rehype-callouts": "^2.1.2",
-    "rehype-mathjax": "^7.1.0",
-    "remark-math": "^6.0.0"
+    "satteri-callouts": "^1.0.1",
+    "satteri-katex": "^0.1.1",
+    "satteri-mathjax": "^0.1.0"
   },
   "devDependencies": {
     "sharp": "^0.35.4"