Document quick move command behaviour
What does this MR do and why?
It adds documentation warning to a user that they need to check issue contents before moving and issue to a project with different access level.
MR acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this MR.
Related to #337185