Extend symbol ranges by their annotation range when suggesting edits (#15677)

Release Notes:

- N/A

---------

Co-authored-by: Nathan <nathan@zed.dev>

crates/multi_buffer/src/multi_buffer.rs

@@ -3646,6 +3646,12 @@ impl MultiBufferSnapshot {
                                     ..self.anchor_in_excerpt(*excerpt_id, body_range.end)?,
                             )
                         }),
+                        annotation_range: item.annotation_range.and_then(|annotation_range| {
+                            Some(
+                                self.anchor_in_excerpt(*excerpt_id, annotation_range.start)?
+                                    ..self.anchor_in_excerpt(*excerpt_id, annotation_range.end)?,
+                            )
+                        }),
                     })
                 })
                 .collect(),
@@ -3681,6 +3687,12 @@ impl MultiBufferSnapshot {
                                     ..self.anchor_in_excerpt(excerpt_id, body_range.end)?,
                             )
                         }),
+                        annotation_range: item.annotation_range.and_then(|body_range| {
+                            Some(
+                                self.anchor_in_excerpt(excerpt_id, body_range.start)?
+                                    ..self.anchor_in_excerpt(excerpt_id, body_range.end)?,
+                            )
+                        }),
                     })
                 })
                 .collect(),