Fix group conversation layout

Signal/src/ViewControllers/ConversationView/Cells/OWSMessageCell.m

@@ -229,7 +229,7 @@ NS_ASSUME_NONNULL_BEGIN
 
     if ([self updateAvatarView]) {
         [self.viewConstraints addObjectsFromArray:@[
-            [self.messageBubbleView autoPinLeadingToTrailingEdgeOfView:self.avatarView offset:LKValues.largeSpacing],
+            [self.messageBubbleView autoPinLeadingToTrailingEdgeOfView:self.avatarView offset:12],
             [self.messageBubbleView autoPinEdge:ALEdgeTop toEdge:ALEdgeTop ofView:self.avatarView],
         ]];
         

SignalMessaging/utils/ConversationStyle.swift

@@ -95,7 +95,7 @@ public class ConversationStyle: NSObject {
                 gutterLeading = 16
                 gutterTrailing = 16
             } else {
-                gutterLeading = 16 + 35 + 24 // Values.mediumSpacing + Values.smallProfilePictureSize + Values.largeSpacing
+                gutterLeading = 12 + 35 + 12 // 12 + Values.smallProfilePictureSize + 12
                 gutterTrailing = 16
             }
         } else {

SignalServiceKit/src/Messages/OWSMessageSender.m

@@ -356,7 +356,9 @@ NSString *const OWSMessageSenderRateLimitedException = @"RateLimitedException";
         OWSAssertDebug([message.body lengthOfBytesUsingEncoding:NSUTF8StringEncoding] <= kOversizeTextMessageSizeThreshold);
     }
     
-    [NSNotificationCenter.defaultCenter postNotificationName:NSNotification.calculatingPoW object:[[NSNumber alloc] initWithUnsignedLongLong:message.timestamp]]; // Not really true but better from a UI point of view
+    if (!message.isGroupChatMessage) {
+        [NSNotificationCenter.defaultCenter postNotificationName:NSNotification.calculatingPoW object:[[NSNumber alloc] initWithUnsignedLongLong:message.timestamp]]; // Not really true but better from a UI point of view
+    }
     
     dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
         NSMutableArray<NSString *> *allAttachmentIds = [NSMutableArray new];