Fix react/no-unescaped-entities ESLint errors at posts/[id]/page.tsx:237

[tayebmokni]

Summary

Two unescaped `"` characters introduced by the recent session in `apps/admin/src/app/(authenticated)/posts/[id]/page.tsx:237`.

`pnpm exec eslint src --ext .ts,.tsx` flags:

```
237:43 error " can be escaped with ", “, ", ” react/no-unescaped-entities
237:56 error " can be escaped with ", “, ", ” react/no-unescaped-entities
```

CI runs `pnpm lint` directly (bypasses next.config's `ignoreDuringBuilds`), so this will fail CI.

Fix

Replace with `“` / `”` (matching existing convention elsewhere in the codebase) or another permitted escape.