Mind Map Interface & Branch Management Update

🛠 Fixes

• Fixed tour display timing to ensure it appears only when user data is ready
• Fixed synchronization issues between tabs when removing branches
• Fixed cursor positioning when creating new branches with arrow keys
• Fixed branch creation and deletion behavior:
  • Prevented accidental branch deletion when it contains text
  • Fixed geometry of newly created branches
  • Fixed creation of child branches when using arrows multiple times
• Fixed styling of the circular button for better visual appearance

✨ New Features

• Added ability to keep empty branches when using Tab key, making it easier to add children to empty branches
• Improved branch selection after deletion with backspace in text fields
• Centered main topic with improved text alignment

And other improvements