Fix crash when registering GUIs on Fabric, Closes CyclopsMC/ColossalChests#200

Author: rubensworks

loader-common/src/main/java/org/cyclops/cyclopscore/client/gui/container/ContainerScreenExtended.java

@@ -82,7 +82,8 @@ public void extractBackground(GuiGraphicsExtractor guiGraphics, int mouseX, int
         guiGraphics.blit(RenderPipelines.GUI_TEXTURED, getGuiTexture(), leftPos + offsetX, topPos + offsetY, 0, 0, imageWidth - 2 * offsetX, imageHeight - 2 * offsetY, 256, 256);
     }
 
-    // @Override // This is an override in Forge and NeoForge, but not in Fabric
+
+    @Override
     public boolean isHovering(Slot slotIn, double mouseX, double mouseY) {
         return this.isHovering(slotIn.x - 1, slotIn.y - 1,
                 18, 18, mouseX, mouseY);

loader-common/src/main/resources/cyclopscore.accesswidener

@@ -10,6 +10,7 @@ accessible field net/minecraft/world/inventory/InventoryMenu TEXTURE_EMPTY_SLOTS
 
 # Screens
 accessible method net/minecraft/client/gui/screens/Screen addRenderableWidget (Lnet/minecraft/client/gui/components/events/GuiEventListener;)Lnet/minecraft/client/gui/components/events/GuiEventListener;
+extendable method net/minecraft/client/gui/screens/inventory/AbstractContainerScreen isHovering (Lnet/minecraft/world/inventory/Slot;DD)Z
 accessible field net/minecraft/client/gui/screens/inventory/AbstractContainerScreen leftPos I
 accessible field net/minecraft/client/gui/screens/inventory/AbstractContainerScreen topPos I
 mutable field net/minecraft/client/gui/screens/inventory/AbstractContainerScreen imageWidth I