Set default window size sensibly

[graeme]

PR: Set default window size to 1000×650

Summary

The default window size was previously set to the minimum (820px wide), making the app feel cramped on first launch. This sets a more comfortable default of 1000×650.

Changes

• BrewSpacing.swift: Added defaultWindowWidth (1000) and defaultWindowHeight (650) constants to BrewLayout
• BrewApp.swift: Use new default constants instead of minimum constants for .defaultSize

Testing

• Built and launched the app — window opens at the new default size

PR checklist

• Have you followed this repository's contribution and workflow guidance?
• Have you explained what changed and why this should land now?
• Have you run relevant local checks for the changed scope?
• Are changes scoped and free of unrelated modifications?

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• AI was used to generate or assist with generating this PR.
• Claude drafted the PR description; changes were written and verified manually.

[Copilot]

Pull request overview

Updates the app’s initial window size to be more comfortable on first launch, while preserving the existing minimum window constraints.

Changes:

• Add BrewLayout.defaultWindowWidth / defaultWindowHeight constants (1000×650).
• Switch BrewApp’s .defaultSize to use the new default constants instead of the minimums.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
Sources/BrewUIComponents/Theme/BrewSpacing.swift	Adds new default window size layout constants alongside existing min-size tokens.
Homebrew/BrewApp.swift	Uses the new default size constants for WindowGroup’s .defaultSize(...).

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[MikeMcQuaid]

Thanks!