task/1506: auto-handle "Another user recently modified this journey" update-error

[JoernBerkefeld]

PR details

What changes did you make? (Give an overview)

• closes [TASK] automatically handle "Another user recently modified this journey. Refresh to edit the latest version." #1506

Further details (optional)

...

Checklist

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• test scripts updated
• Wiki updated (if applicable)

[github-actions]

Coverage Report

Commit:e7f94b1
Base: develop@c129a6a

Type	Base	This PR
Total Statements Coverage	70.35%	70.35%  (+0%)
Total Branches Coverage	69.4%	69.36%  (-0.04%)
Total Functions Coverage	82.37%	82.37%  (+0%)
Total Lines Coverage	70.35%	70.35%  (+0%)

Details (changed files):

File	Statements	Branches	Functions	Lines
lib/metadataTypes/Journey.js	57.76%	56%	88.23%	57.76%