Refactor editor manager and dungeon editor for improved clarity and performance

- Removed unused functions and streamlined shortcut registration in EditorManager for better readability.
- Updated lambda captures to use 'this' pointer for consistency and clarity.
- Refactored DungeonEditor to utilize ranges for sorting and filling operations, enhancing performance and readability.
- Simplified table setup in DungeonEditor by using a static array for tool names, improving maintainability.

src/app/zelda3/overworld/overworld.cc

@@ -55,7 +55,7 @@ void Overworld::FetchLargeMaps() {
   overworld_maps_[136].SetAsSmallMap();
 
   std::array<bool, kNumMapsPerWorld> map_checked;
-  std::fill(map_checked.begin(), map_checked.end(), false);
+  std::ranges::fill(map_checked, false);
 
   int xx = 0;
   int yy = 0;