Update version to 0.18.1

[laminesm]

Platforms Impacted

• iOS
• macOS

Description of changes

This PR updates to release version 0.18.1

• [main_0.18] Use base 10 integer literals for InteractivePart (#1791) #1793
• [main_0.18] Check for existing titleView before creating a custom titleView (#1792) #1794
• Remove deprecated API shouldAutorotate in DrawerController #1796

Pull request checklist

This PR has considered:

• Light and Dark appearances
• iOS supported versions (all major versions greater than or equal current target deployment version)
• VoiceOver and Keyboard Accessibility
• Internationalization and Right to Left layouts
• Different resolutions (1x, 2x, 3x)
• Size classes and window sizes (iPhone vs iPad, notched devices, multitasking, different window sizes, etc)
• iPad Pointer interaction
• SwiftUI consumption (validation or new demo scenarios needed)
• Objective-C exposure (provide it only if needed)

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