[ImgBot] Optimize images

*Total -- 137.01kb -> 76.56kb (44.12%)

/src/main/resources/assets/ironchest/textures/model/emerald_chest.png -- 5.51kb -> 2.73kb (50.5%)
/src/main/resources/assets/ironchest/textures/model/obsidian_chest.png -- 5.28kb -> 2.62kb (50.36%)
/src/main/resources/assets/ironchest/textures/model/gold_chest.png -- 4.56kb -> 2.29kb (49.68%)
/src/main/resources/assets/ironchest/textures/model/netherite_chest.png -- 5.16kb -> 2.62kb (49.18%)
/src/main/resources/assets/ironchest/textures/model/diamond_chest.png -- 5.61kb -> 2.91kb (48.19%)
/src/main/resources/assets/ironchest/textures/model/crystal_chest (semi-transparent).png -- 4.49kb -> 2.41kb (46.32%)
/src/main/resources/assets/ironchest/textures/model/crystal_chest.png -- 4.09kb -> 2.22kb (45.86%)
/src/main/resources/assets/ironchest/textures/model/iron_chest.png -- 4.38kb -> 2.39kb (45.38%)
/src/main/resources/assets/ironchest/textures/item/gold_obsidian_upgrade.png -- 3.56kb -> 2.00kb (43.79%)
/src/main/resources/assets/ironchest/textures/item/gold_crystal_upgrade.png -- 3.56kb -> 2.01kb (43.55%)
/src/main/resources/assets/ironchest/textures/item/diamond_crystal_upgrade.png -- 3.62kb -> 2.05kb (43.27%)
/src/main/resources/assets/ironchest/textures/item/diamond_obsidian_upgrade.png -- 3.61kb -> 2.05kb (43.12%)
/src/main/resources/assets/ironchest/textures/item/iron_obsidian_upgrade.png -- 3.47kb -> 1.98kb (42.93%)
/src/main/resources/assets/ironchest/textures/item/emerald_crystal_upgrade.png -- 3.61kb -> 2.06kb (42.92%)
/src/main/resources/assets/ironchest/textures/item/emerald_obsidian_upgrade.png -- 3.61kb -> 2.06kb (42.91%)
/src/main/resources/assets/ironchest/textures/item/iron_diamond_upgrade.png -- 3.59kb -> 2.05kb (42.87%)
/src/main/resources/assets/ironchest/textures/item/gold_diamond_upgrade.png -- 3.67kb -> 2.10kb (42.85%)
/src/main/resources/assets/ironchest/textures/item/iron_gold_upgrade.png -- 3.58kb -> 2.05kb (42.83%)
/src/main/resources/assets/ironchest/textures/item/iron_crystal_upgrade.png -- 3.48kb -> 1.99kb (42.68%)
/src/main/resources/assets/ironchest/textures/item/wood_diamond_upgrade.png -- 3.62kb -> 2.08kb (42.58%)
/src/main/resources/assets/ironchest/textures/model/copper_chest.png -- 5.12kb -> 2.95kb (42.39%)
/src/main/resources/assets/ironchest/textures/item/wood_obsidian_upgrade.png -- 3.50kb -> 2.02kb (42.36%)
/src/main/resources/assets/ironchest/textures/item/wood_gold_upgrade.png -- 3.59kb -> 2.08kb (42.19%)
/src/main/resources/assets/ironchest/textures/item/wood_iron_upgrade.png -- 3.59kb -> 2.08kb (42.17%)
/src/main/resources/assets/ironchest/textures/item/iron_emerald_upgrade.png -- 3.54kb -> 2.05kb (42.16%)
/src/main/resources/assets/ironchest/textures/item/copper_diamond_upgrade.png -- 3.64kb -> 2.11kb (42.08%)
/src/main/resources/assets/ironchest/textures/item/copper_obsidian_upgrade.png -- 3.55kb -> 2.06kb (42.05%)
/src/main/resources/assets/ironchest/textures/item/wood_crystal_upgrade.png -- 3.51kb -> 2.04kb (42.01%)
/src/main/resources/assets/ironchest/textures/item/copper_crystal_upgrade.png -- 3.56kb -> 2.07kb (41.92%)
/src/main/resources/assets/ironchest/textures/item/wood_emerald_upgrade.png -- 3.56kb -> 2.07kb (41.89%)
/src/main/resources/assets/ironchest/textures/item/wood_christmas_upgrade.png -- 3.52kb -> 2.04kb (41.88%)
/src/main/resources/assets/ironchest/textures/item/wood_copper_upgrade.png -- 3.64kb -> 2.12kb (41.81%)
/src/main/resources/assets/ironchest/textures/item/copper_emerald_upgrade.png -- 3.60kb -> 2.10kb (41.5%)
/src/main/resources/assets/ironchest/textures/item/copper_gold_upgrade.png -- 3.62kb -> 2.12kb (41.48%)
/src/main/resources/assets/ironchest/textures/item/copper_iron_upgrade.png -- 3.39kb -> 1.98kb (41.46%)

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