[OneTimePasswordField] sync focus with controlled value updates when autoFocus is enabled

[sidoruk-sv]

Description

When the OTP field is controlled and autoFocus is enabled, the component now aligns focus with the current value. This supports flows where an external input (e.g., a virtual keyboard) updates the value directly. For example, if value becomes "1", the second input is focused and ready for the next digit.

What changed

Added an effect that, on value change, focuses the input corresponding to the current value length.
This runs only when:

• The component is controlled (value prop provided), and
• autoFocus is true.

Why

In setups using virtual keyboards, the OTP field receives programmatic value updates and must keep the UI focus in sync so the next cell is immediately ready for entry.

Impact

No changes for uncontrolled usage or when autoFocus is false.
Backward compatible.

Tests

Updated tests to cover focus syncing on controlled value changes. Added story with "virtual keyboard-button"

[changeset-bot]

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Latest commit: 3160028

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