Sync device orientation when conversation view and home view appear.

Signal/src/ViewControllers/ConversationView/ConversationViewController.m

@@ -748,6 +748,8 @@ typedef enum : NSUInteger {
         OWSLogVerbose(@"First viewWillAppear took: %.2fms", appearenceDuration * 1000);
     }
     [self updateInputToolbarLayout];
+
+    [UIViewController attemptRotationToDeviceOrientation];
 }
 
 - (NSArray<id<ConversationViewItem>> *)viewItems

Signal/src/ViewControllers/HomeView/HomeViewController.m

@@ -645,6 +645,8 @@ NSString *const kArchivedConversationsReuseIdentifier = @"kArchivedConversations
     }
 
     [self.searchResultsController viewWillAppear:animated];
+
+    [UIViewController attemptRotationToDeviceOrientation];
 }
 
 - (void)viewWillDisappear:(BOOL)animated