Refactor Teams components for improved sorting and filtering functionality

Updated the Teams Index and Printout components to prioritize sorting by EventFormat, enhancing the organization of team data. Introduced a regional filter toggle in the Teams Index to allow users to view only regional teams. Adjusted the ScheduledTeamsList to sort teams by EventFormat first, ensuring consistent ordering across components. Additionally, added necessary using directives for improved code clarity.

WebApp/Components/Features/MeetingSchedule/ScheduledTeamsList.razor

@@ -1,8 +1,9 @@
 @using Core.Calculation
+@using WebApp.Models
 
 <MudStack>
     <MudText Typo="Typo.h6">@TimeSlotName</MudText>
-    @foreach (var team in Teams.OrderBy(e => e.ToString()))
+    @foreach (var team in Teams.OrderByEventFormatFirst().ThenBy(e => e.ToString()))
     {
         var removed = !ScheduledTeams.Contains(team);