Have PowerShell formatter remove trailing whitespace when formatting a file

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Summary

When allowing the PSScriptAnalyzerSettings.psd1 to show Information-level problems, it adds a lot of overhead in formatting files that have lines with trailing whitespaces. Since this recommendation is mostly aesthetic/non-breaking, as is the automated code formatting in general, I'd like to see the formatter for PowerShell remove these trailing whitespaces characters.

https://learn.microsoft.com/en-us/powershell/utility-modules/psscriptanalyzer/rules/avoidtrailingwhitespace?view=ps-modules

Because we can't store a centralized configuration for PSScriptAnalyzerSettings.psd1 in source control at the repo/workspace level to have it be taken automatically be any user working on that repo, having per-user rules to suppress this aren't really practical. I did see a separate thread in this project's issues noting individual users can set a configuration flag to do this, but again, having every user do that themselves vs. having a central linting rule is frustrating to maintain adherence on. Short of having a CI/CD pipeline hard reject any PSScriptAnalyzer errors to force them to check in cleaned code, an automated approach is best.

Proposed Design

No response

L’issue non indica alcun file sorgente né alcun test. Inizia individuando l’implementazione del formatter PowerShell in questa estensione VS Code TypeScript e riproduci la formattazione su un file con spazi bianchi finali. Il lavoro è completato quando l’output formattato rimuove gli spazi bianchi finali senza modificare contenuti non correlati, con la relativa copertura nei test di formattazione, se esistono.