fix shulker box height & inverted tab click hitbox

Author: sisby-folk

src/main/java/folk/sisby/inventory_tabs/TabManager.java

@@ -282,7 +282,7 @@ public static Rect2i getPageButton(boolean left) {
     }
 
     public static Rect2i getTabArea(WidgetPosition pos) {
-        return new Rect2i(pos.x, pos.y + (pos.up ? -TAB_HEIGHT : TAB_HEIGHT), TAB_WIDTH, TAB_HEIGHT);
+        return new Rect2i(pos.x, pos.y + (pos.up ? -TAB_HEIGHT : 0), TAB_WIDTH, TAB_HEIGHT);
     }
 
     public static void drawButton(DrawContext drawContext, double mouseX, double mouseY, boolean left) {

src/main/java/folk/sisby/inventory_tabs/mixin/MixinShulkerBoxScreen.java

@@ -26,8 +26,8 @@ public MixinShulkerBoxScreen(GenericContainerScreenHandler handler, PlayerInvent
 
     @Inject(method = "<init>", at = @At("TAIL"))
     public void containerTextHeight(ShulkerBoxScreenHandler handler, PlayerInventory inventory, Text title, CallbackInfo ci) {
-        this.backgroundHeight -= 2;
-        this.playerInventoryTitleY = this.backgroundHeight - 93;
+        this.backgroundHeight -= 1;
+        this.playerInventoryTitleY = this.backgroundHeight - 94;
     }
 
     @Inject(method = "drawBackground", at = @At("TAIL"))