Many aspects of the Navigation block codebase have grown over time. Let's see if we can simplify:

• Remove excess duplication - let's avoid taking this too far.
• Reduce code "noise" in the primary edit definition - this may be by extracting hooks.
• Remove legacy code routes from Navigation block codebase #45031
• Remove duplicate code from Navigation block #45033
• Merge and split hooks in the Nav block  #45034
• Audit Navigation block code and remove unused parts #45036
• Navigation block: Separate code that handles classic menus #45037
• Navigation: Demonstrate correspondence between front and backend code more clearly #45038
• Navigation: Improve readability by refactoring the logic around fallbacks #45039