♻️(frontend) adapt custom blocks to new implementation

Last release of Blocknote introduced breaking
changes for custom blocks.
We adapted our custom blocks to the new
implementation.
"code-block" is considered as a block now, we
update the way to import and use it.
The custom blocks should be now more tiptap friendly.

src/frontend/apps/impress/package.json

@@ -36,15 +36,18 @@
     "@gouvfr-lasuite/integration": "1.0.3",
     "@gouvfr-lasuite/ui-kit": "0.16.2",
     "@hocuspocus/provider": "2.15.2",
+    "@mantine/core": "8.3.4",
+    "@mantine/hooks": "8.3.4",
     "@openfun/cunningham-react": "3.2.3",
     "@react-pdf/renderer": "4.3.1",
     "@sentry/nextjs": "10.17.0",
     "@tanstack/react-query": "5.90.2",
+    "@tiptap/extensions": "3.4.4",
     "canvg": "4.0.3",
     "clsx": "2.1.1",
     "cmdk": "1.1.1",
     "crisp-sdk-web": "1.0.25",
-    "docx": "9.5.0",
+    "docx": "*",
     "emoji-datasource-apple": "16.0.0",
     "emoji-mart": "5.6.0",
     "emoji-regex": "10.5.0",