lints: A bunch of extra style lint fixes (#36568)

- **lints: Fix 'doc_lazy_continuation'**
- **lints: Fix 'doc_overindented_list_items'**
- **inherent_to_string and io_other_error**
- **Some more lint fixes**
- **lints: enable bool_assert_comparison, match_like_matches_macro and
wrong_self_convention**


Release Notes:

- N/A

crates/agent_ui/src/active_thread.rs

@@ -1765,7 +1765,7 @@ impl ActiveThread {
                 .thread
                 .read(cx)
                 .message(message_id)
-                .map(|msg| msg.to_string())
+                .map(|msg| msg.to_message_content())
                 .unwrap_or_default();
 
             telemetry::event!(