Refactor and update various components and assets

- Updated WaterBottle scene to change field values and costs, and modified avatar texture and display name.
- Removed unused pencil SVG and its import files.
- Updated Chomp sound effect with a new binary file.
- Modified Diamond bullet behavior to improve tracing logic.
- Increased rotation speed for Laser bullet.
- Adjusted Chick and Hen character attack methods to generate bullets without returning prematurely.
- Updated Rooster character to use PurpleCrystal bullet instead of Pencil.
- Enhanced BulletBase with new properties for energy consumption and animation control.
- Adjusted blend position interpolation in EntityBase for smoother movement.
- Added new Star bullet with its scene and script, including animation setup.
- Updated SVG and import files for new Star bullet graphics.

scripts/Contents/Characters/Hen.gd

@@ -12,4 +12,6 @@ func ai():
 func attack(type):
 	if type == 0:
 		var weaponPos = findWeaponAnchor("normal")
-		return BulletBase.generate(preload("res://components/Bullets/HenBomb.tscn"), self, weaponPos, 0)
+		for i in randi_range(1, 4):
+			BulletBase.generate(preload("res://components/Bullets/Star.tscn"), self, weaponPos, randf_range(0, PI * 2))
+	return true