Enable usage_quotas_pipelines_vue by default

What does this MR do and why?

As part of #360785 (closed) one of the final steps before cleaning up the feature flag is to enable it by default. This MR is doing that, while we break down the cleaning up MR: !104710 (closed)

Screenshots or screen recordings

• Staging: #360785 (comment 1180847698)
• Production: #360785 (comment 1180904501)

How to set up and validate locally

N/A

MR acceptance checklist

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• I have evaluated the MR acceptance checklist for this MR.