FE-1310: add banner to ds

[alex-e-leon]

🌟 What is the purpose of this PR?

Add Banner component

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

• does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

• are internal and do not require a docs change

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PR Summary

Medium Risk
Chip variant renames are a breaking API change for Chip consumers; Tone widening plus narrowed props on Button/inputs may surface TypeScript errors in downstream code.

Overview
Introduces a new Banner compound component (title, description, actions, dismiss) with five tones, three visual variants (solid / soft / outline), configurable leading icons (including custom nodes), optional dismiss, and container-query layout so actions wrap on narrow banners. It is exported from the package and covered by Ladle stories; a patch changeset records the release.

Tone in form-shared now includes warning and success, used by Banner. Other components narrow what they accept: Button and selectable Menu items no longer allow warning/success tones; Checkbox, Radio, and Toggle adjust their allowed tone unions accordingly.

Chip variant names are renamed for consistency: fill → defined, fillLight → soft, subtle → ghost (recipe, types, stories, and defaults updated).

Adds diamondExclamation to Icon for the error banner default glyph.

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