Edits Global/GlobalEntity.cs and adds a test Create

WatchLog/Components/Pages/GlobalEntities.razor.cs

@@ -0,0 +1,45 @@
+using Microsoft.AspNetCore.Components;
+using WatchLog.Data;
+
+namespace WatchLog.Components.Pages
+{
+    public partial class GlobalEntities
+    {
+        public bool ShowCreate { get; set; }
+
+        private WatchLogDataContext? _context;
+
+        public required GlobalEntity NewGlobalEntity { get; set; }
+
+        protected override Task OnInitializedAsync()
+        {
+            ShowCreate = false;
+            return Task.CompletedTask;
+        }
+
+        public void ShowCreateForm()
+        {
+            ShowCreate = true;
+            NewGlobalEntity = new GlobalEntity
+            {
+                Title = "",
+                CreationTime = DateTime.Now,
+                CreatorId = 1,
+                TypeId = 1,
+            };
+        }
+
+        public async Task CreateNewGlobalEntity()
+        {
+            _context ??= await WatchLogDataContextFactory.CreateDbContextAsync();
+
+            if (NewGlobalEntity is not null)
+            {
+                _context?.GlobalEntities.Add(NewGlobalEntity);
+                _context?.SaveChangesAsync();
+            }
+
+            ShowCreate = false;
+        }
+    }
+}