feat(docs): add copy selected PI ids button

[venetrius]

related to camunda/camunda-bpm-platform/issues/4896

[venetrius]

This features does not require any extra attantion when migrating to 7.23 so I did not mention it in https://github.com/camunda/camunda-docs-manual/blob/master/content/update/minor/722-to-723/_index.md

[tasso94]

Just one hint on style. Other than that reads very good! 👍

[tasso94]

Suggested change

	## Copy the ID-s of selected Process Instances
	Sometimes incidents make it necessary for the Operations Engineer to intervene manually. To make it easier to work with a subset of Process Instances it is possible to copy the ID-s of the selected Process Instances using the `Copy selected Process Instances IDs` button:
	{{< img src="../../img/cockpit-copy-process-instance-ids.png" title="Copy selected id-s button" >}}
	The selected Process Instance ID-s then can be used for example to filter process instances using the [`IN` filter operator](##in-operator) or the [`Not In` filter operator](#not-in-operator).
	## Copy the IDs of selected Process Instances
	Sometimes incidents make it necessary for the Operations Engineer to intervene manually. To make it easier to work with a subset of Process Instances it is possible to copy the IDs of the selected Process Instances using the `Copy selected Process Instances IDs` button:
	{{< img src="../../img/cockpit-copy-process-instance-ids.png" title="Copy selected ids button" >}}
	The selected Process Instance IDs then can be used for example to filter process instances using the [`IN` filter operator](##in-operator) or the [`Not In` filter operator](#not-in-operator).

❌ Personally, I don't have a strong preference of how to write IDs. However, I would opt for consistency in this case.

[venetrius]

good point, applied suggested changes.