Add codegen and chat instructions to CustomInstructions popover

[ryanmio]

Add codegen and chat instructions to CustomInstructions popover

• Implement retrieval of playSimilar and selectedScript values from localStorage.
• Add useEffect hooks to listen for 'storageCleared' events and update state accordingly.
• Create formatCodeSnippet function to clean up and format code snippets for display.
• Introduce conditional rendering to display the Custom Instructions chip only when there are instructions or playSimilar is set.
• Format and display the selectedScript.question when playSimilar is true.
• Format and display customInstructions for codegen and chatbot.
• Adjust styling to ensure consistent spacing and clear section headers within the popover.
• Ensure that the component gracefully handles the absence of custom instructions.

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