Add newlines before impl blocks (#19746)

# Objective

Fix #19617 

# Solution

Add newlines before all impl blocks.

I suspect that at least some of these will be objectionable! If there's
a desired Bevy style for this then I'll update the PR. If not then we
can just close it - it's the work of a single find and replace.

Author: theotherphil

benches/benches/bevy_ecs/change_detection.rs

@@ -49,6 +49,7 @@ impl BenchModify for Table {
         black_box(self.0)
     }
 }
+
 impl BenchModify for Sparse {
     fn bench_modify(&mut self) -> f32 {
         self.0 += 1f32;

crates/bevy_app/src/propagate.rs

@@ -88,6 +88,7 @@ impl<C: Component + Clone + PartialEq> core::fmt::Debug for PropagateSet<C> {
 }
 
 impl<C: Component + Clone + PartialEq> Eq for PropagateSet<C> {}
+
 impl<C: Component + Clone + PartialEq> core::hash::Hash for PropagateSet<C> {
     fn hash<H: core::hash::Hasher>(&self, state: &mut H) {
         self._p.hash(state);

crates/bevy_asset/src/direct_access_ext.rs

@@ -20,6 +20,7 @@ pub trait DirectAssetAccessExt {
         settings: impl Fn(&mut S) + Send + Sync + 'static,
     ) -> Handle<A>;
 }
+
 impl DirectAssetAccessExt for World {
     /// Insert an asset similarly to [`Assets::add`].
     ///

crates/bevy_asset/src/io/embedded/embedded_watcher.rs

@@ -56,6 +56,7 @@ pub(crate) struct EmbeddedEventHandler {
     dir: Dir,
     last_event: Option<AssetSourceEvent>,
 }
+
 impl FilesystemEventHandler for EmbeddedEventHandler {
     fn begin(&mut self) {
         self.last_event = None;

crates/bevy_asset/src/io/embedded/mod.rs

@@ -141,16 +141,19 @@ impl EmbeddedAssetRegistry {
 pub trait GetAssetServer {
     fn get_asset_server(&self) -> &AssetServer;
 }
+
 impl GetAssetServer for App {
     fn get_asset_server(&self) -> &AssetServer {
         self.world().get_asset_server()
     }
 }
+
 impl GetAssetServer for World {
     fn get_asset_server(&self) -> &AssetServer {
         self.resource()
     }
 }
+
 impl GetAssetServer for AssetServer {
     fn get_asset_server(&self) -> &AssetServer {
         self

crates/bevy_asset/src/reflect.rs

@@ -223,6 +223,7 @@ pub struct ReflectHandle {
     downcast_handle_untyped: fn(&dyn Any) -> Option<UntypedHandle>,
     typed: fn(UntypedHandle) -> Box<dyn Reflect>,
 }
+
 impl ReflectHandle {
     /// The [`TypeId`] of the asset
     pub fn asset_type_id(&self) -> TypeId {

crates/bevy_audio/src/audio_output.rs

@@ -57,6 +57,7 @@ pub struct PlaybackRemoveMarker;
 pub(crate) struct EarPositions<'w, 's> {
     pub(crate) query: Query<'w, 's, (Entity, &'static GlobalTransform, &'static SpatialListener)>,
 }
+
 impl<'w, 's> EarPositions<'w, 's> {
     /// Gets a set of transformed ear positions.
     ///

crates/bevy_core_pipeline/src/core_3d/camera_3d.rs

@@ -80,6 +80,7 @@ impl From<TextureUsages> for Camera3dDepthTextureUsage {
         Self(value.bits())
     }
 }
+
 impl From<Camera3dDepthTextureUsage> for TextureUsages {
     fn from(value: Camera3dDepthTextureUsage) -> Self {
         Self::from_bits_truncate(value.0)

crates/bevy_diagnostic/src/frame_time_diagnostics_plugin.rs

@@ -17,11 +17,13 @@ pub struct FrameTimeDiagnosticsPlugin {
     /// The smoothing factor for the exponential moving average. Usually `2.0 / (history_length + 1.0)`.
     pub smoothing_factor: f64,
 }
+
 impl Default for FrameTimeDiagnosticsPlugin {
     fn default() -> Self {
         Self::new(DEFAULT_MAX_HISTORY_LENGTH)
     }
 }
+
 impl FrameTimeDiagnosticsPlugin {
     /// Creates a new `FrameTimeDiagnosticsPlugin` with the specified `max_history_length` and a
     /// reasonable `smoothing_factor`.

crates/bevy_ecs/src/archetype.rs

@@ -960,6 +960,7 @@ impl Index<RangeFrom<ArchetypeGeneration>> for Archetypes {
         &self.archetypes[index.start.0.index()..]
     }
 }
+
 impl Index<ArchetypeId> for Archetypes {
     type Output = Archetype;