cli: add replies to patch show output

If any replies to patches were made, it was not possible to see them
in the output of `rad patch show`.

Add the replies to show output, but only if the `--verbose` flag is
set.

Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett

radicle-cli/src/terminal/patch.rs

@@ -435,6 +435,16 @@ pub fn show(
     for line in timeline::timeline(profile, patch) {
         widget.push(line);
     }
+
+    if verbose {
+        for (id, comment) in revision.replies() {
+            let hstack = term::comment::header(id, comment, profile);
+
+            widget = widget.divider();
+            widget.push(hstack);
+            widget.push(term::textarea(comment.body()).wrap(60));
+        }
+    }
     widget.print();
 
     Ok(())

radicle/src/cob/patch.rs

@@ -1420,6 +1420,11 @@ impl Revision {
         &self.discussion
     }
 
+    /// Iterate over all top-level replies.
+    pub fn replies(&self) -> impl Iterator<Item = (&CommentId, &thread::Comment<CodeLocation>)> {
+        self.discussion.comments()
+    }
+
     /// Reviews of this revision's changes (one per actor).
     pub fn reviews(&self) -> impl DoubleEndedIterator<Item = (&PublicKey, &Review)> {
         self.reviews