Updated package versions, code style, and logging

This commit includes several updates to improve the overall codebase. The .editorconfig file has been modified to adjust the severity of diagnostic rules and tweak some style rules. The API.csproj and Directory.Packages.props files have been updated to include the Azure.Identity package, with the latter also having several package versions updated. The ProjectRequestService.cs file has seen a type change for the _logger field and constructor parameter. Exception logging format has been changed in the VaultDataRetriever.cs file. The UserOrganization.sln and API.http files have been updated to include new HTTP requests and solution items.