Backport Blazor Server Add Console Warning if Long Polling (#36764)
#36886
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Description
In RC2, we reverted enforcing WebSocket based transports via #36656.
This PR adds back some error messages, along with a new warning message specifically mentioning that Long Polling is being utilized.
Customer Impact
Adds additional console warnings to notify users/developers that they're utilizing Long Polling, and provides links for additional information. This is to encourage customers to switch to WebSockets which provides a significantly improved end-user experience.
Regression?
Risk
Added console warnings.
Verification
Packaging changes reviewed?
Addresses #36817
PR: #36764