Smoother iPhone Maps & Smarter Collapse Controls

🛠 Fixes

• Fixed misaligned center menu on iPhone Chrome — now perfectly centered
• Fixed page scrolling during map drag on iPhone — map moves smoothly without shifting the page underneath

  The map drags smoothly; the page no longer shifts under your finger.

• Fixed file watcher behavior for undefined paths and restored proper default home URL
• Improved YJS origin check with better error handling and logging

✨ New Features

• Added collapse/expand eye button for quick toggling without opening menus
• Added context menu collapse option to hide node content while keeping layout intact
• Introduced long hover context menu activation and auto-close on hover away
  • Feels natural both for mouse and touch (matches long-press timing)
• Added eye icons for collapsed nodes — cleaner, intuitive look
• Show chevron button on branch hover for faster access to actions

🔄 Improvements

• Switched expand/collapse icons from +/- to clean chevrons </>
• Removed center collapse button
• Centered context menu under branches for better focus and balance
• Reorganized and simplified context menu structure:
  • Renamed “Branch” → “Add Branch”
  • Moved Paste below Hyperlink, removed unused items
  • Grouped edit operations under “Edit Branch”
  • Synced all menu actions with keyboard shortcuts
• Set image sizes based on branch level for better visual hierarchy

And other improvements