Fix try printing when it is not the last pipeline element (#13992)

# Description

Fixes #13991. This was done by more clearly separating the case when a
pipeline is drained vs when it is being written (to a file).

I also added an `OutDest::Print` case which might not be strictly
necessary, but is a helpful addition.

# User-Facing Changes

Bug fix.

# Tests + Formatting

Added a test.

# After Submitting

There are still a few redirection bugs that I found, but they require
larger code changes, so I'll leave them until after the release.

crates/nu-protocol/src/engine/stack_out_dest.rs

@@ -62,8 +62,8 @@ pub(crate) struct StackOutDest {
 impl StackOutDest {
     pub(crate) fn new() -> Self {
         Self {
-            pipe_stdout: None,
-            pipe_stderr: None,
+            pipe_stdout: Some(OutDest::Print),
+            pipe_stderr: Some(OutDest::Print),
             stdout: OutDest::Inherit,
             stderr: OutDest::Inherit,
             parent_stdout: None,