Enhance 'More' sheet with Share and Terms & Privacy links

[poketonova]

This pull request introduces two useful additions to the "More" sheet in App.vue:

1. Share Rarebox: A new action that leverages the Web Share API (where supported) to allow users to easily share the Rarebox URL with friends or on social media. This is a common pattern for mobile-first PWAs and helps with discoverability.
2. Terms & Privacy Link: Added a direct link to the Terms & Conditions page within the "More" sheet. Previously, this was only accessible via the footer, which could be cumbersome to reach on long pages on mobile. This improves accessibility and transparency regarding the app's privacy stance.

These changes enhance the user experience by making key actions more accessible on mobile and foldable devices.

Verification:

• Added "Share Rarebox" item with conditional rendering based on navigator.share support.
• Added "Terms & Privacy" item with appropriate icon and link.
• Verified layout and spacing in the "More" sheet.
• Branch name: dev-agent-improvement-2026-06-18

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Project	Deployment	Actions	Updated (UTC)
pokemon-collectr	Ready	Preview, Comment	Jun 18, 2026 3:03pm