Added showPillIcon() method to SettingsListItem

[nalcalag]

Task/Issue URL: https://app.asana.com/1/137249556945/task/1213217874770243

Description

Implement showPillIcon method to set visibility programatically in SettingsListItem

Steps to test this PR

• Install from branch
• Go to Settings > ADS Preview
• Tap on List items
• Check pill icons on Settings items look correct

No UI changes

---

Note

Low Risk
Small UI-component API addition and preview wiring change; risk is limited to pill visibility/attribute behavior in settings list items.

Overview
SettingsListItem now exposes showPillIcon(Boolean) to control the yellow pill visibility programmatically, and initialization was refactored to always set pillText while delegating visibility to the new method.

The internal design-system preview for the settings list item was updated to default pillIcon to false in XML and then explicitly enable it in SettingsListItemComponentViewHolder.bind to demonstrate runtime toggling.

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[nalcalag]

• Added showPillIcon() method to SettingsListItem #7724 👈 (View in Graphite)
• develop

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