Fix: StaggeredLayout division bug

[Poker-sang]

Fixes

closes #542
fix microsoft/PowerToys#35139

PR Type

What kind of change does this PR introduce?

What is the current behavior?

What is the new behavior?

PR Checklist

Please check if your PR fulfills the following requirements:

• Created a feature/dev branch in your fork (vs. submitting directly from a commit on main)
• Based off latest main branch of toolkit
• Tested code with current supported SDKs
• New component
  • Documentation has been added
  • Sample in sample app has been added
  • Analyzers are passing for documentation and samples
  • Icon has been created (if new sample) following the Thumbnail Style Guide and templates
• Tests for the changes have been added (if applicable)
• Header has been added to all new source files
• Contains NO breaking changes

Other information

[michael-hawker]

Not sure what happened with the tooling submodule here either.

Wondering if we could add a test for anything around this to help guard future issues?

[Poker-sang]

Not sure what happened with the tooling submodule here either.

Wondering if we could add a test for anything around this to help guard future issues?

reverted too. Is there a way to make git not track changes to submodules?

[michael-hawker]

🦙❤️ Thanks!

[michael-hawker]

Was just about to approve and merge, but noticed it was slightly different than when I had first looked before the weekend. Thanks for fixing the tooling submodule stuff.

[Poker-sang]

@michael-hawker Ok reverted it. i commit this ((columnWidth + ColumnSpacing) instead of columnWidth) here because i found that we forget to calculate spacing before. And we might see the bug clearly when ColumnSpacing is close to columnWidth. And you are right we should make it in #573

I moved it here

[michael-hawker]

🎉 Thanks @Poker-sang for this quick fix! 🦙❤️ And for moving the column fix to the other PR. I'll get this merged once the CI passes, some strange issue I haven't seen before there; so just re-kicking to see if it was just a stray cosmic ray! 🤞