fix: clear boot window to prevent future monitor write interference

inventoryManager.lua

@@ -311,6 +311,11 @@ local function main()
             end
 
             ops.refreshCache(drawBoot)
+
+            -- Destroy boot window so it doesn't intercept future monitor writes
+            buf.setVisible(true)
+            buf.clear()
+            buf = nil
         else
             ops.refreshCache()
         end