Enable word wrap in feedback modal (#23893)

https://zed-industries.slack.com/archives/C04S7CZPF4M/p1738151539115169

Release Notes:

- Enable word wrap in the feedback modal

crates/feedback/src/feedback_modal.rs

@@ -194,6 +194,7 @@ impl FeedbackModal {
             editor.set_show_inline_completions(Some(false), window, cx);
             editor.set_vertical_scroll_margin(5, cx);
             editor.set_use_modal_editing(false);
+            editor.set_soft_wrap();
             editor
         });