Rename HA flags for cluster setup

[as51340]

Description

Renamed flags used when setting up HA cluster.

[master < Task] PR

• Provide the full content or a guide for the final git message
  • Rename flags for setting up HA cluster

Documentation checklist

• Add the documentation label tag
• Add the bug / feature label tag
• Add the milestone for which this feature is intended
  • If not known, set for a later milestone
• Write a release note, including added/changed clauses
  • [Release note text]
• Link the documentation PR here
  • [memgraph-2.16 < ] HA docs  documentation#649
• Tag someone from docs team in the comments

[as51340]

@kgolubic docs will be added in batch before 10th April, will post link then.

release note: Renamed HA flags to improve cluster setup

[antoniofilipovic]

This looks good. Do we want to rename also other structs? RaftState -> CoordinatorState, CoordinatorInstance -> ManagementInstance?

[as51340]

We already have CoordinatorState.
CoordinatorInstance sounds better than ManagementInstance to me

[antoniofilipovic]

We already have CoordinatorState. CoordinatorInstance sounds better than ManagementInstance to me

I forgot about CoordinatorState. I also like CoordinatorInstance better, but will we be inconsistent then? I am not sure if that is good if we are inconsistent. We can then rename current CoordinatorState to something, and RaftState to CoordinatorState.

Let's sync tomorrow, we can see what is best thing to do