'Share this cat' Feature

[BrandonML]

Allow the user to share the cat they are looking at through common share channels (e.g., email, copy link, social media).

1. Instead of 'Share this cat' or similar, consider using the cat's name. Ex: "Share Luna".
2. Provide the user with common sharing channel options.
3. Consider a pre-made card/container/template when sharing via SM. Ideally, include the core adoption details in this text.
4. Include a brief Tabby brand/promo mention. Ex. Include a simple but memorable tagline like "Meet an adoptable cat every time you open a new tab." and link to the Tabby Extension listing page.