style(announcements): ui cleanup. Remove unnecessary button

Author: maakinoh

src/Eurofurence.App.Backoffice/Components/EditAnnouncementDialog.razor

@@ -173,6 +173,7 @@
             Area = Announcement.Area,
             Content = Announcement.Content,
             ImageId = Announcement.ImageId,
+            ValidFromDateTimeUtc = Announcement.ValidFromDateTimeUtc,
             ValidUntilDateTimeUtc = endDateTime.Value,
             Groups = _groups
                 .Split(",", StringSplitOptions.RemoveEmptyEntries)
@@ -183,6 +184,7 @@
 
         try
         {
+            _submissionInProgress = true;
             await AnnouncementService.UpdateAnnouncementAsync(Announcement.Id, request);
             Snackbar.Add("Announcement successfully submitted", Severity.Success);
             MudDialog?.Close(DialogResult.Ok(request));

src/Eurofurence.App.Backoffice/Pages/Announcements.razor

@@ -11,8 +11,6 @@
 <MudToolBar>
     <MudText Typo="Typo.h6">Announcements</MudText>
     <MudSpacer />
-    <MudButton Class="ml-4" Variant="Variant.Filled" Color="Color.Primary" OnClick="OnClickNewAnnouncement">Add New
-    </MudButton>
 </MudToolBar>
 
 
@@ -58,7 +56,7 @@
             {x => x.Announcement, item}
         };
 
-        var dialog = await DialogService.ShowAsync<EditAnnouncementDialog>("Create a new Announcement", parameters, options);
+        var dialog = await DialogService.ShowAsync<EditAnnouncementDialog>("Edit Announcement", parameters, options);
         var result = await dialog.Result;
 
         if (result is { Canceled: false })