EPIC Goal

1. RHDHPLAN-922: "Global Floating Action Button" announced as deprecated in favour of the new "Global Header"
2. this issue) "Global Floating Action Button" moved from the enabled-by-default list to the disabled-by-default list - see https://github.com/redhat-developer/rhdh/blob/main/default.packages.yaml#L14
3. any related e2e tests should make the FAB plugin enabled to ensure the current test cases still pass with minimum code change.

Background/Feature Origin

discussion in https://docs.google.com/document/d/1G9ix2MambnkYVJwsf3e-4ShHn90asfqwDFQJHANEFww/edit?tab=t.0#heading=h.6h1hf36xyfyh 

Why is this important?

User Scenarios

Dependencies (internal and external)

Acceptance Criteria

Release Enablement/Demo - Provide necessary release enablement details
and documents

DEV - Upstream code and tests merged: <link to meaningful PR or GitHub
Issue>

DEV - Upstream documentation merged: <link to meaningful PR or GitHub
Issue>

DEV - Downstream build attached to advisory: <link to errata>

QE - Test plans in Playwright: <link or reference to playwright>

QE - Automated tests merged: <link or reference to automated tests>

DOC - Downstream documentation merged: <link to meaningful PR>

• FAB is default to be disabled in RHDH
• all e2e tests where FAB is mentioned should still pass with the default behavior change