test: NetworkSwitcher localStorage and Alt+N, ButtonGroup styling and href disabled, SorobanInvokeButton loading label and result height

[k-deejah]

Problem

1. Tests for NetworkSwitcher localStorage persistence, Alt+N shortcut, and mismatch badge are missing — after issue b40, no tests verify the saved network is restored, Alt+N opens the dropdown, or the mismatch badge renders.

2. Tests for ButtonGroup connected styling, leftIcon/rightIcon placement, and href disabled are missing — after issue b34, no tests verify sibling buttons in ButtonGroup have modified border radius, icons render in the correct position, or href button does not fire on disabled.

3. Tests for SorobanInvokeButton loading method label, tooltip prop, and max result height are missing — after issue b35, no tests verify loading shows "Invoking {method}…", tooltip renders as title, or result container has max-h overflow.

Solution

Write Vitest tests for all three groups.

Acceptance Criteria

• NetworkSwitcher persistence, shortcut, and mismatch badge tests pass
• ButtonGroup styling, icon, and disabled href tests pass
• SorobanInvokeButton loading label, tooltip, and result height tests pass
• All tests pass with npm test

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Note for Contributors: Write a clear PR description. Include the full npm test output.

[aliybabsi]

@aliybabsi has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello Maintainer I would love to resolve this issue

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[samuelelijah585]

@samuelelijah585 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello, I've reviewed the issue and its acceptance criteria, and I'm confident I can deliver a solution that meets the requirements. I'd appreciate it if you could assign this issue to me. Thank you!

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[BernardOnuh]

@BernardOnuh has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello, I am interested in resolving this task. I have analyzed the requirements and mapped out an efficient path forward for execution. Please assign the issue to me if it is still open, and I will get started right away.

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Congratulations, @BernardOnuh! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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