blend_modes example: fix label position (#8454)

# Objective

- Labels are not correctly placed
<img width="1392" alt="Screenshot 2023-04-22 at 00 12 54"
src="https://user-images.githubusercontent.com/8672791/233742996-0189b3c2-ea6b-4f3f-b2e8-68fdbf74f52f.png">

## Solution

- Set a width in the UI so that text doesn't try to wrap
<img width="1392" alt="Screenshot 2023-04-22 at 00 13 04"
src="https://user-images.githubusercontent.com/8672791/233743064-8d6045e5-3936-4c22-be07-ac618399c093.png">

examples/3d/blend_modes.rs

@@ -34,6 +34,7 @@ fn setup(
     mut commands: Commands,
     mut meshes: ResMut<Assets<Mesh>>,
     mut materials: ResMut<Assets<StandardMaterial>>,
+    asset_server: Res<AssetServer>,
 ) {
     let base_color = Color::rgba(0.9, 0.2, 0.3, 1.0);
     let icosphere_mesh = meshes.add(
@@ -185,15 +186,15 @@ fn setup(
 
     // Controls Text
     let text_style = TextStyle {
+        font: asset_server.load("fonts/FiraMono-Medium.ttf"),
         font_size: 18.0,
         color: Color::BLACK,
-        ..default()
     };
 
     let label_text_style = TextStyle {
+        font: asset_server.load("fonts/FiraMono-Medium.ttf"),
         font_size: 25.0,
         color: Color::ORANGE,
-        ..default()
     };
 
     commands.spawn(
@@ -233,11 +234,13 @@ fn setup(
             ))
             .with_children(|parent| {
                 parent.spawn(
-                    TextBundle::from_section(label, label_text_style.clone()).with_style(Style {
-                        position_type: PositionType::Absolute,
-                        bottom: Val::Px(0.),
-                        ..default()
-                    }),
+                    TextBundle::from_section(label, label_text_style.clone())
+                        .with_style(Style {
+                            position_type: PositionType::Absolute,
+                            bottom: Val::Px(0.),
+                            ..default()
+                        })
+                        .with_no_wrap(),
                 );
             });
     };