Integrate new replace menu

[nikku]

What should we do?

• add new replace menu
• add keyboard shortcut (R) to replace currently selected element

Why should we do it?

Support bpmn-io/bpmn-js#1627.

[nikku]

@smbea To consider if we want to do this (+ keyboard shortcut).

[smbea]

Basically this means bumping versions and adding the keyboard shortcut, right?

[nikku]

Yes. The keyboard shortcut may be missing with stock bpmn-js (yet). Did we add it?

On the electron side of things we need to add it as a menu item, in addition.

[smbea]

We haven't added it yet in bpmn-js, no. It is at the end of the checklist here bpmn-io/bpmn-js#1627 but since we decided to ship just replace, it should've been split up too oops

[nikku]

Could you split up that monstrous issue up in two parts (ship replace + rest) @smbea?

Makes it easier to follow along and not miss out on such things.

[smbea]

Question: The 'R' shortcut overlaps with the token simulation reset shortcut. Isn't this something we should avoid?

[nikku]

Let's not care about the token simulation R shortcut for the moment, but rather move forward at the core. Token simulation (similar to all other extensions) have to adopt. I.e. could decide to ditch the shortcut or use a different one to ensure 100% interoperability.

A simple way to solve this is by making R contextual, which it already is, I think:

• R shall be reset when token simulation is active (only)
• R shall be replace when it is not active