Bug 1: Missing tag in channel list
- Changed selectionLabel from 'XMTP' to 'XMTP (Decentralized Messaging)'
- Updated both channel.ts and types.xmtp.ts to match package.json
Bug 2: allowFrom incorrectly required in pairing mode
- Removed forceAllowFrom condition from allowFrom prompt
- Now only prompts for allowFrom when dmPolicy === 'allowlist'
- Pairing mode correctly allows anyone to message (approved later)
