* disable scale down to zero
* scaling down to zero restrictions for RKE1
* removed extra optional chaining
* removed wrong condition for minus button
* added unit tests
* combined rke1 and rke2 scale down modals + more tests + minor refactor
* delete unused file ScaleRke1NodeDownDialog.vue
* moved logic from created to data + used nameDisplay for both rke1 and rke2
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Co-authored-by: Mo Mesgin <mmesgin@Mos-M2-MacBook-Pro.local>