Update enterprise tier feature comparison table on website

[lbeau]

Description

Update feature comparison table for enterprise tier packaging changes

Remove pro checkmark for Certified Nodes capability (is only for enterprise tier going fwd)

Update copy for modal dialog on tooltip:

Old Copy:

A curated selection of certified Node-RED nodes, enhancing efficiency and security for production deployments.

New Copy:
Officially supported Node-RED nodes with SLA-backed security patching and reliability guarantees for mission-critical production deployments.

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