relax case sensitivity in searches

ErsatzTV.Application/MediaItems/Queries/GetAggregateMediaItemsHandler.cs

@@ -24,7 +24,9 @@ namespace ErsatzTV.Application.MediaItems.Queries
 
             if (!string.IsNullOrEmpty(request.SearchString))
             {
-                allItems = allItems.Filter(i => i.Metadata?.Title.Contains(request.SearchString) == true);
+                allItems = allItems.Filter(
+                    i => i.Metadata?.Title.ToLowerInvariant().Contains(request.SearchString.ToLowerInvariant()) ==
+                         true);
             }
 
             return allItems.GroupBy(c => new { c.Source.Name, c.Metadata.Title }).Map(

ErsatzTV/Pages/ScheduleItemsEditor.razor

@@ -170,7 +170,7 @@
     }
 
     private Task<IEnumerable<MediaCollectionViewModel>> SearchMediaCollections(string value) =>
-        _mediaCollections.Filter(c => c.Name.ToLowerInvariant().StartsWith(value ?? string.Empty)).AsTask();
+        _mediaCollections.Filter(c => c.Name.ToLowerInvariant().Contains((value ?? string.Empty).ToLowerInvariant())).AsTask();
 
     private async Task SaveChanges()
     {