How do i do this?

My college accidentally moved layer panel to the bottom. how do i reset it back to original and how to move that layer panel? it’s a great inconvenience for me to see everything else dimmed whenever i change layer and looking for instances

That comes from the latest update a few hours ago.
You can move any panel with drag and drop. In Preferences we have an new option to reset the layout.
But Bottom is the new default position for the layer panel and it looks like there is a bug, your custom position is saved if you closing and opening GD, but not if you closing and opening the panel.