Add Meta Pixel analytics provider support

[BC-AdamWard]

What/Why?

Add Meta Pixel (Facebook Pixel) analytics provider to Catalyst analytics framework. Implements standard e-commerce event tracking (ViewContent, AddToCart, RemoveFromCart, ViewCart, ViewCategory) with consent management support. Enables merchants to track events using Meta Pixel alongside or instead of Google Analytics.

• Add MetaPixelProvider class implementing AnalyticsProvider interface
• Update WebAnalyticsFragment to include metaPixel configuration
• Update AnalyticsProvider component to support multiple providers
• Add consent management integration for GDPR/CCPA compliance

Testing

1. Add Meta Pixel to store settings or inline in the Catalyst component.
2. Load storefront and validate pixel fires against meta pixel

Migration

Minor change

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🦋 Changeset detected

Latest commit: 0d7b5684bc323b075e04502b961ab51e9f989ca7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@bigcommerce/catalyst-core	Minor

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