Add a way of hovering over the RAM list to highlight object on screen

[Chrezm]

Sometimes it is difficult to track what object is what on screen. There should be a functionality that lets you highlight an object on screen based on its current ID.

An example implementation would be something like this. If you hover over your cursor on top of the RAM list, while potentially holding down some key combo (e.g. Control), if the cursor is over some row, the corresponding object will be highlighted on screen. If the object happens to be offscreen, helpful arrows would indicate its location (similar to how Minerva treats 1p if they are offscreen)