Ananya/SortButton

[ananyadua27]

This PR adds a sorting feature to the list view on the Home screen. Users can now choose how they want the list to be sorted. A new reusable sort menu component was added so this feature can be used later within the app.

Changes included

• Added a reusable sort menu view (BMSortMenuView)

• Added a reusable sorting option enum (BMSortOption)

• Added a generic sorting engine (BMSortEngine)

• Updated BMHomeSectionListView to support sorting

• Added a sort button above the list
  Sorting modes:
  1. Name (A to Z)
  2. Name (Z to A)
  3. Closest
  4. Furthest
  5. Open Times
  6. Close Times

• Updated the Home section list (dining, fitness and study) to use a generic type that works with the sort engine

• Note: Since we do not display open/close for fitness/study, for now the sort has only 4 options (all but open/close).

• Once we're able to integrate that, we can add the last 2 sort options in as well

• Maintained existing iOS version behavior

Testing

• Built and ran the app in the iOS simulator
• Verified that:
  • Sorting updates the list immediately
  • All sorting modes behave correctly
  • The sort menu UI displays correctly and does not break layout
  • No unintended changes to navigation or list rendering

Linked Issue
Closes #459