🎨 Palette: Enhance sample app UX and accessibility

[juankyc]

💡 What: The UX enhancement added

This PR introduces several micro-UX improvements to the ShadowHook sample app:

1. Interactive ADB Command: The ADB logcat command at the top is now clickable. Tapping it copies the command to the clipboard, shows a Toast, and provides visual feedback via a ripple effect.
2. Improved Button State: The "load libhookee2.so" button now disables itself and updates its label to "libhookee2.so loaded" once clicked, providing immediate and clear state feedback.
3. State Persistence: The UI state (whether the library is loaded) is now correctly preserved during Activity recreation (e.g., screen rotation).
4. Resource Externalization: Hardcoded strings in the layout have been moved to strings.xml.

🎯 Why: The user problem it solves

• Developers no longer need to manually type or copy-paste the ADB command from the UI text.
• Users get clear feedback that the library loading action was successful and that it doesn't need to be repeated.
• The app remains consistent across device rotations.
• Standardizing strings improves accessibility and localization readiness.

♿ Accessibility: Any a11y improvements made

• Added android:contentDescription="@string/adb_command_description" to the interactive ADB command TextView so screen readers clearly identify its purpose as a copy action.
• Moving strings to strings.xml allows for better support by accessibility services and future localization.
• Improved state feedback (disabled button + text change) helps all users understand the current state of the application.

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PR created automatically by Jules for task 16828581755377275052 started by @juankyc

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