fix crash when creating image post

app/community/routes.py

@@ -380,9 +380,9 @@ def add_post(actor):
             '@context': default_context()
         }
         if post.type == POST_TYPE_LINK:
-            page.attachment = [{'href': post.url, 'type': 'Link'}]
+            page['attachment'] = [{'href': post.url, 'type': 'Link'}]
         if post.image_id:
-            page.image = [{'type': 'Image', 'url': post.image.source_url}]
+            page['image'] = [{'type': 'Image', 'url': post.image.source_url}]
         if not community.is_local():  # this is a remote community - send the post to the instance that hosts it
             success = post_request(community.ap_inbox_url, create, current_user.private_key,
                                    current_user.ap_profile_id + '#main-key')

app/static/structure.css

@@ -782,4 +782,8 @@ fieldset legend {
   }
 }
 
+.mobile_create_post {
+  float: right;
+}
+
 /*# sourceMappingURL=structure.css.map */

app/static/structure.scss

@@ -458,3 +458,7 @@ fieldset {
     max-width: 1180px;
   }
 }
+
+.mobile_create_post {
+  float: right;
+}

app/templates/community/_community_nav.html

@@ -1,3 +1,6 @@
+<div class="mobile_create_post d-md-none mt-1">
+    <a class="btn btn-primary" href="/community/{{ community.link() }}/submit">{{ _('Create post') }}</a>
+</div>
 <div class="btn-group mt-1 mb-2">
     <a href="?sort=hot" class="btn {{ 'btn-primary' if request.args.get('sort', '') == '' or request.args.get('sort', '') == 'hot' else 'btn-outline-secondary' }}" rel="nofollow">
         {{ _('Hot') }}