Create/Update assets for version 1.21.4

assets/minecraft/textures/gui/sprites/container/bundle/_list.json

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+{"directories":[],"files":["bundle_progressbar_border.png","bundle_progressbar_border.png.mcmeta","bundle_progressbar_fill.png","bundle_progressbar_fill.png.mcmeta","bundle_progressbar_full.png","bundle_progressbar_full.png.mcmeta","slot_background.png","slot_background.png.mcmeta","slot_highlight_back.png","slot_highlight_back.png.mcmeta","slot_highlight_front.png","slot_highlight_front.png.mcmeta"]}

assets/minecraft/textures/gui/sprites/container/bundle/bundle_progressbar_border.png.mcmeta

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+{
+    "gui": {
+        "scaling": {
+            "type": "nine_slice",
+            "width": 12,
+            "height": 12,
+            "border": 2
+        }
+    }
+}

assets/minecraft/textures/gui/sprites/container/bundle/bundle_progressbar_fill.png.mcmeta

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+{
+    "gui": {
+        "scaling": {
+            "type": "nine_slice",
+            "width": 6,
+            "height": 6,
+            "border": 2
+        }
+    }
+}

assets/minecraft/textures/gui/sprites/container/bundle/bundle_progressbar_full.png.mcmeta

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+{
+    "gui": {
+        "scaling": {
+            "type": "nine_slice",
+            "width": 6,
+            "height": 6,
+            "border": 2
+        }
+    }
+}

assets/minecraft/textures/gui/sprites/container/bundle/slot_background.png.mcmeta

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+{
+    "gui": {
+        "scaling": {
+            "type": "nine_slice",
+            "width": 24,
+            "height": 24,
+            "border": 4
+        }
+    }
+}

assets/minecraft/textures/gui/sprites/container/bundle/slot_highlight_back.png.mcmeta

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+{
+    "gui": {
+        "scaling": {
+            "type": "nine_slice",
+            "width": 24,
+            "height": 24,
+            "border": 4
+        }
+    }
+}

assets/minecraft/textures/gui/sprites/container/bundle/slot_highlight_front.png.mcmeta

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+{
+    "gui": {
+        "scaling": {
+            "type": "nine_slice",
+            "width": 24,
+            "height": 24,
+            "border": 4
+        }
+    }
+}