feat: Move more work off the main Excel thread

[kaspermarstal]

No description provided.

[sentry]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ Cellm.AddIn.Exceptions.CellmException: Failed to parse context: Exception of type 'ExcelDna.Integration.XlCallException' was thrown. AddIn\ArgumentParser.cs in string ArgumentParse... View Issue
• ‼️ Cellm.AddIn.Exceptions.CellmException: Failed to parse context: Object reference not set to an instance of an object. AddIn\ArgumentParser.cs in string ArgumentParse... View Issue
• ‼️ System.ArgumentException: Invalid type: ExcelDna.Integration.ExcelEmpty (ExcelDna.Integration.ExcelEmpty) (Parameter 'cells') AddIn\ArgumentParser.cs in string ArgumentParse... View Issue
• ‼️ System.Threading.Tasks.TaskCanceledException: The operation was canceled. Models\Providers\ProviderRequestHandler.cs in a... View Issue
• ‼️ System.Threading.Tasks.TaskCanceledException: The operation was canceled. Models\Providers\ProviderRequestHandler.cs in a... View Issue

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