Paste, duplicate and preset insert end in a server error when the target is full or gone

Problem/Motivation

Five builder actions end in a server error instead of a message:

• Pasting or duplicating into a full slot or root: \OutOfRangeException.
• Pasting under a parent that no longer exists: InvalidNodeException.
• Pasting a copied node that no longer exists: the attach is skipped, then the attach event reaches the islands with no node ID, a TypeError, on a root paste too.
• Inserting a preset that no longer exists: getSources() on NULL.
• Inserting a preset into a full root or slot: \OutOfRangeException.

A pattern preset builder hits two of them every time, since its root takes one node: duplicating the root node, and dropping a preset on the root. Previewing a preset that no longer exists fails like inserting it.

All reproduced in kernel tests. Drag and drop catches the full-target case, ApiActionsController::paste(), ApiController::attachPresetToRoot() and attachPresetToSlot() do not, and nothing catches InvalidNodeException.

Proposed resolution

• One exception subscriber on the display_builder.api_* routes answers InvalidNodeException and \OutOfRangeException with the builder's error toast. Catching them in each action would push ApiController over its PHPMD complexity limit, which it is one point away from.
• paste() throws InvalidNodeException when the copied node is gone, instead of dispatching an event about nothing.
• A missing preset takes the existing "missing preset data" error path on insert, and a 404 on preview.

Found while reviewing #3624396: Plan: Harden InstanceInterface, IslandInterface and DisplayBuildableInterface as public API before RC1, which makes every instance mutator declare what it throws.