Replace Fleet Cluster Nodes Ready column

[aalves08]

Summary

Fixes #10542

Occurred changes and/or fixed issues

• replace nodeInfo with bundleInfo in fleet cluster model
• update fleet cluster table to display bundles ready instead of nodes ready (as per Removes cluster node status reporting from agent fleet#2190)

Technical notes summary

Areas or cases that should be tested

• go to fleet clusters and check that we no longer display nodes ready (replaced by bundles ready)

Areas which could experience regressions

Screenshot/Video

Before

Aft

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[rak-phillip]

LGTM - I left a few observations while reviewing. I think these are optional and don't block merging in any way 🙂