AutoAttack 2.1.0

• Fixed: holding left click only played the swing animation on the first hit. Every auto-attack now plays the vanilla-consistent swing animation.
• Added: configurable "attack while blocking" (attack_while_blocking), enabled by default. Works with vanilla shields and modded shields that support the shield_block tool action. Set to false to restore vanilla behavior.
• Improved compatibility: attack rate now follows each weapon's attack speed, so it works with high-attack-speed and no-cooldown weapon mods. Attacks only trigger when aiming at an entity — empty swings do nothing.