FOUR-8989: As a process designer I want to have the BPMN download option available in the processes ellipsis menu, so it is available in the process section

[danloa]

Issue & Reproduction Steps

Implements the new feature that allows to download a process BPMN definition from the process listing:

Related Tickets & Packages

• Link to any related FOUR tickets, PRDs, or packages
  https://processmaker.atlassian.net/browse/FOUR-8989

Code Review Checklist

• I have pulled this code locally and tested it on my instance, along with any associated packages.
• This code adheres to ProcessMaker Coding Guidelines.
• This code includes a unit test or an E2E test that tests its functionality, or is covered by an existing test.
• This solution fixes the bug reported in the original ticket.
• This solution does not alter the expected output of a component in a way that would break existing Processes.
• This solution does not implement any breaking changes that would invalidate documentation or cause existing Processes to fail.
• This solution has been tested with enterprise packages that rely on its functionality and does not introduce bugs in those packages.
• This code does not duplicate functionality that already exists in the framework or in ProcessMaker.
• This ticket conforms to the PRD associated with this part of ProcessMaker.

[pmkerberos]

QA server was successfully deployed https://ci-28eba3d3f9.eng.processmaker.net

[pmkerberos]

QA server was successfully deployed https://ci-28eba3d3f9.eng.processmaker.net

[mcraeteisha]

Approved!

[pmkerberos]

QA server was successfully deployed https://ci-28eba3d3f9.eng.processmaker.net