Unable to publish DID document warning Printed When Activating ParticipantContext at Creation (isActive=true)

# Bug Report

## Describe the Bug
When creating a ParticipantContext with `ParticipantManifest.isActive=true`, a warning is printed:

`WARNING [DidDocumentService] Updating DID documents after activating a KeyPair failed: Cannot publish DID 'did:web:alice' for participant 'alice' because the ParticipantContext state is not 'ACTIVATED', but 'CREATED'.`

This is because the key pair is added first before activating the Participant (which invokes a did document update). The ParticipantContext is activated afterwards and as a result, the DID document will still be published, but the warning is printed regardless.

### Expected Behavior

I expect no warning when directly activating a ParticipantContext at creation.

### Observed Behavior

The aforementioned warning is printed.

## Steps to Reproduce

Create a ParticipantManifest with .active(true), then create the ParticipantContext

## Context Information

_Add any other context about the problem here._

## Detailed Description

_If applicable, add screenshots and logs to help explain your problem._

## Possible Implementation

Activate the participant (if the manifest has `isActive=true`) before adding the key pair. Perhaps directly while building the ParticipantContext.