fix(feed): add blog post

lib/features/consultant/become_consultant/presentation/pages/certificates_and_diploms_screen.dart

@@ -10,6 +10,21 @@ class CertificatesAndDiplomsScreen extends StatefulWidget {
 class _CertificatesAndDiplomsScreenState extends State<CertificatesAndDiplomsScreen> {
   @override
   Widget build(BuildContext context) {
-    return const Placeholder();
+    return SingleChildScrollView(
+      padding: EdgeInsets.only(bottom: 80, right: 16, left: 16, top: 16),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Text(
+            'Добавьте дипломы\nи сертификаты',
+            style: TextStyle(
+              fontSize: 24,
+              fontWeight: FontWeight.w700,
+              height: 1.1,
+            ),
+          ),
+        ],
+      ),
+    );
   }
 }

lib/old/feed/blog_post_create_screen/bloc/blog_post_create_bloc.dart

@@ -83,7 +83,7 @@ class BlogPostCreateBloc extends Bloc<BlogPostCreateEvent, BlogPostCreateState>
       'description': description,
       'state': 'active',
       'youtube_url': youtubeURL,
-      'image': await MultipartFile.fromFile(image!.path, filename: image.name),
+      'image': image != null ? await MultipartFile.fromFile(image.path, filename: image.name) : null,
     });
 
     final response = await sl<Dio>().post(