Remove flaky IconButton tests

[langermank]

Remove flaky snapshot tests in favor of the newer Keybinding snapshots

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Latest commit: 8706b11

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[github-actions]

👋 Hi, this pull request contains changes to the source code that github/github depends on. If you are GitHub staff, we recommend testing these changes with github/github using the integration workflow. Thanks!

[Copilot]

Pull Request Overview

This PR removes flaky snapshot tests for IconButton keybinding hints that relied on timing-sensitive interactions and tooltip visibility. The keybinding functionality is now covered by more reliable snapshot tests elsewhere.

Key Changes:

• Removed two keybinding hint test stories with complex timing requirements
• Simplified test setup by removing conditional story setup logic
• Removed unused Page type import