Fix distorted images in messages view.

// FREEBIE

Signal/src/Models/TSMessageAdapaters/TSPhotoAdapter.m

@@ -67,8 +67,8 @@ NS_ASSUME_NONNULL_BEGIN
     if (self.cachedImageView == nil) {
         CGSize size             = [self mediaViewDisplaySize];
         UIImageView *imageView  = [[UIImageView alloc] initWithImage:self.image];
-        imageView.frame         = CGRectMake(0.0f, 0.0f, size.width, size.height);
         imageView.contentMode   = UIViewContentModeScaleAspectFill;
+        imageView.frame         = CGRectMake(0.0f, 0.0f, size.width, size.height);
         imageView.clipsToBounds = YES;
         // Use trilinear filters for better scaling quality at
         // some performance cost.