Implemented container helper status checked. Started implementing container helper ui. Improved update modal

Moonlight.Api/Services/ContainerHelperService.cs

@@ -13,6 +13,23 @@ public class ContainerHelperService
         HttpClientFactory = httpClientFactory;
     }
 
+    public async Task<bool> CheckConnectionAsync()
+    {
+        var client = HttpClientFactory.CreateClient("ContainerHelper");
+
+        try
+        {
+            var response = await client.GetAsync("api/ping");
+            response.EnsureSuccessStatusCode();
+
+            return true;
+        }
+        catch (Exception)
+        {
+            return false;
+        }
+    }
+
     public async IAsyncEnumerable<RebuildEvent> RebuildAsync()
     {
         var options = new JsonSerializerOptions()
@@ -29,6 +46,7 @@ public class ContainerHelperService
         if (!response.IsSuccessStatusCode)
         {
             var responseText = await response.Content.ReadAsStringAsync();
+            
             yield return new RebuildEvent()
             {
                 Type =  RebuildEventType.Failed,
@@ -56,6 +74,11 @@ public class ContainerHelperService
             var deserializedData = JsonSerializer.Deserialize<RebuildEvent>(data, options);
             
             yield return deserializedData;
+            
+            // Exit if service will go down for a clean exit
+            if(deserializedData is {Type: RebuildEventType.Step, Data: "ServiceDown"})
+                yield break;
+            
         } while (true);
         
         yield return new RebuildEvent()