feat: add blur and escape key callbacks to Toggle component

[firestar300]

Introduces onBlur and onEscPressed callback options for the Toggle component, enabling custom logic when the toggle loses focus or the Escape key is pressed. This provides enhanced control and accessibility, and also refactors the existing onClick callback handling for consistency.

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Note

Low Risk
Localized Toggle API extension and event-listener cleanup; behavior change is intentional (Escape no longer triggers click) and covered by tests.

Overview
Adds onBlur and onEscPressed options to Toggle, so consumers can run custom logic when focus leaves the control or when Escape is pressed while content is open. Blur/escape listeners are wired when those callbacks are set or when closeOnBlur / closeOnEscPress is enabled; closing on blur/escape is no longer tied to firing the new callbacks.

Escape handling is refactored: each instance uses a bound _handleEscPress on window (removed on destroy) instead of a global listener that simulated a button click. Escape now calls close() when closeOnEscPress is true and invokes onEscPressed without incrementing click side effects.

onClick is aligned with the same pattern (boundOnClick, “custom” detected vs default no-ops). Docs, the accessible-toggle example (event status UI), and Playwright coverage for click, blur, and escape are updated.

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