Tweak conversation rendering so reviews without content show up

Previously if you had a PR that was approved but the approver didn't
include a message, the review simply wouldn't show up in the UI

lazy_github/ui/widgets/conversations.py

@@ -111,10 +111,11 @@ def compose(self) -> ComposeResult:
         else:
             review_state_text = self.review.state.title()
         yield Label(f"Review from {self.review.user.login} ({review_state_text})")
-        yield Markdown(self.review.body)
-        for comment in self.review.comments:
-            if comment_node := self.hierarchy[comment.id]:
-                yield ReviewConversation(self.pr, comment_node)
+        if self.review.body:
+            yield Markdown(self.review.body)
+            for comment in self.review.comments:
+                if comment_node := self.hierarchy[comment.id]:
+                    yield ReviewConversation(self.pr, comment_node)
 
     def action_reply_to_review(self) -> None:
         self.app.push_screen(NewCommentModal(self.pr.repo, self.pr, self.review))

lazy_github/ui/widgets/pull_requests.py

@@ -315,8 +315,8 @@ async def fetch_conversation(self) -> None:
         for review in reviews:
             if review.body:
                 handled_comment_node_ids.extend([c.id for c in review.comments])
-                review_container = ReviewContainer(self.pr, review, review_hierarchy)
-                self.comments_and_reviews.mount(review_container)
+            review_container = ReviewContainer(self.pr, review, review_hierarchy)
+            self.comments_and_reviews.mount(review_container)
 
         for comment in comments:
             if comment.body and comment.id not in handled_comment_node_ids: