Climbing down ledges is not obvious

[olanti-p]

Is your feature request related to a problem? Please describe.

It's not obvious that you have to examine the ledge to be able to jump over it or climb down.
Climbing up is done via '<', but the corresponding '>' does not work if you stand near the ledge.
Similarly, walking into the ledge only allows to jump down, which may appear as the only option the game supports.

Describe the solution you'd like

Either modify the warning ("Jump down the ledge? If you want to climb down, try examining instead."), or join the two prompts into a single big "Jump down/Jump over/Climb down" prompt.

[olanti-p]

Fixed by #3141