`NullReferenceException` when trying to update weapons data.

[Zapdos333]

Describe the bug An Unhandled Exception (System.NullReferenceException) pops up when trying to update weapons data. This error occurs on both v0.5.1 and v0.5.0. Telling the application to continue (ignoring the error) results in it basically freezing.

To Reproduce In a fresh unpacked instance:

1. Start the Akasha Scanner
2. Go to Weapon Scanner
3. Try to update the (at the time outdated) weapons data.
4. The error popup (see in Screenshots) appears shortly afterwards.

Expected behavior When trying to update the weapons data the download should just complete after some time and the application continues to run normally afterwards.

Screenshots The error popup:

Additional context The entire Exception Text:

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
   at AkashaScanner.Core.DataCollections.Repositories.WeaponsHoYoWikiRepository.Load() in C:\Users\ghfel\Documents\GitHub\AkashaScanner\AkashaScanner\Core\DataCollections\Repositories\WeaponsHoYoWikiRepository.cs:line 31
   at AkashaScanner.Core.DataCollections.BaseCollection`1.LoadRemote() in C:\Users\ghfel\Documents\GitHub\AkashaScanner\AkashaScanner\Core\DataCollections\BaseCollection.cs:line 72
   at AkashaScanner.Ui.Partials.DataUpdate.OnUpdate() in C:\Users\ghfel\Documents\GitHub\AkashaScanner\AkashaScanner\Ui\Partials\DataUpdate.razor:line 66
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)
   at Microsoft.AspNetCore.Components.WebView.IpcSender.<>c__DisplayClass9_0.<NotifyUnhandledException>b__1()
   at Microsoft.AspNetCore.Components.WebView.WindowsForms.WindowsFormsDispatcher.InvokeAsync(Action workItem)
   at Microsoft.AspNetCore.Components.WebView.WindowsForms.WindowsFormsDispatcher.<>c.<.cctor>b__8_0(Exception exception)

[akrios-d]

Will take a look on it today

[akrios-d]

The problem is due to Mountain-Bracing Bolt and Peak Patrol Song not being able to parse atm due invalid response from the wiki

[akrios-d]

Will make a 0.5.2 avaliable today

[akrios-d]

@Zapdos333 if find any other bug let me know