fix: 3.7 version modal and docs

[Joibel]

Fixes #14912 (adds documentation here, actual issue is fixed on release-3.7)
Fixes #14913

Motivation

New version modal is missing release-notes from 3.7

Release process misses this and the kubernetes versions, so added reminders there.

Modifications

Updated new-version-modal from release notes.

Verification

and clicked the links to ensure they work

Docs checked here via read-the-docs

Documentation

Updated release process docs.

[Copilot]

Pull Request Overview

This PR fixes the new version modal and updates release documentation by adding v3.7 release notes to the version modal and enhancing the release process documentation with reminders about required updates.

• Adds v3.7 feature highlights to the new version modal with a link to detailed release notes
• Updates release process documentation with reminders to update the version modal and Kubernetes version docs

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
ui/src/modals/new-version-modal.tsx	Adds v3.7 section with feature bullets and documentation link
docs/releasing.md	Adds reminders to update version modal and Kubernetes versions during release process

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