refactor public and private access checks for eks imported clusters
refactor public and private access checks for eks imported clusters

rancher/rancher#31258

rancher/ui,westlywright/ui,rancherio/ui,rancher/ui,westlywright/ui,rancherio/ui,vincent99/ui,westlywright/ui,rancher/ui,vincent99/ui,vincent99/ui,rancherio/ui