Fix suppression of all console logs when trace_tracy is enabled

Bevy was failing to print events from `info!()` and friends to the console if
the `trace_tracy` feature was enabled.

The problem was this per-layer filter that was added in bevyengine#4320 to suppress a
noisy per-frame event (which Tracy requires in order to properly close out a
frame):

- The problem event's target was `"bevy_render::renderer"`, not `"tracy"`.
    - So, the filter wasn't specifically targeting the noisy event.
- Without a default, `tracing_subscriber::filter::Targets` will remove
  _everything_ that doesn't match an explicit target rule.
    - So, the filter _was_ silencing the noisy event, along with everything else.

This commit changes that filter to do what was probably intended in bevyengine#4320:
suppress any events more verbose than `ERROR` from `bevy_render::renderer`, but
allow anything else that already made it through the top-level filter_layer.

Author: nfagerlund

crates/bevy_log/src/lib.rs

@@ -154,9 +154,14 @@ impl Plugin for LogPlugin {
             let tracy_layer = tracing_tracy::TracyLayer::new();
 
             let fmt_layer = tracing_subscriber::fmt::Layer::default();
+
+            // bevy_render::renderer logs a `tracy.frame_mark` event every frame
+            // at Level::INFO. Formatted logs should omit it.
             #[cfg(feature = "tracing-tracy")]
             let fmt_layer = fmt_layer.with_filter(
-                tracing_subscriber::filter::Targets::new().with_target("tracy", Level::ERROR),
+                tracing_subscriber::filter::Targets::new()
+                    .with_target("bevy_render::renderer", Level::ERROR)
+                    .with_default(Level::TRACE),
             );
 
             let subscriber = subscriber.with(fmt_layer);