Use normal List instead interface list

Francesco.Recipes.World/Repositories/Unit/IUnitRepository.cs

@@ -8,6 +8,6 @@
 
         Task<Unit> AddUnitAsync(string name, string symbol);
 
-        Task<IList<Unit>> GetAllUnitsAsync();
+        Task<List<Unit>> GetAllUnitsAsync();
     }
 }

Francesco.Recipes.World/Repositories/Unit/UnitRepository.cs

@@ -35,7 +35,7 @@
             return unit;
         }
 
-        public async Task<IList<Unit>> GetAllUnitsAsync()
+        public async Task<List<Unit>> GetAllUnitsAsync()
         {
             return await _context.Units.ToListAsync();
         }