Bug fixes

Fixes and polish across Grok this week.

Imagine

• Added Japanese IME support on Imagine
• Fixed canvas thumbnail generation including for video nodes
• Fixed Safari clipboard error in template modal
• Cleaned up canvas empty state and chat collapse

Files

• Syntax highlighting now works in file viewer with thumbnail fallback for code files
• Contained xlsx preview crashes so single bad file doesn't break panel

Chat

• Fixed "Current" pill overlapping action icons in Cmd+K menu
• Improved fallback for unsupported file types to render text or offer download

Voice

• Fixed on-screen keyboard opening when tapping buttons in voice mode
• Voice transcript now auto-scrolls during long responses

Projects & sharing

• "Create new collection" disabled for read-only team members
• Share dialog debounced to stop badge flickering

Billing

• Fixed PayPal billing interval logic