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### Summary by CodeRabbit
- New Feature: Updated WhatsApp logo with a new design and color scheme.
- New Feature: Added a help button in the UI linking to documentation,
enhancing user guidance.
- New Feature: Introduced an alert message indicating that the WhatsApp
integration is in beta testing.
- New Feature: Implemented a button to open WhatsApp Web directly from
the application, improving user convenience.
- Refactor: Adjusted the retrieval of `contactPhoneNumber` in
`receiveMessagePreview` function for better data structure
compatibility.
- Refactor: Optimized the initialization and management of the WhatsApp
session in `startWhatsAppPreview`.
- Refactor: Improved the `parseButtonsReply` function by refining
condition checks.
- Refactor: Enhanced the readability of serialized rich text in
`convertRichTextToWhatsAppText` by introducing newline characters.
- Bug Fix: Ensured preservation of `contact` information when resuming
the WhatsApp flow in `resumeWhatsAppFlow`.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
… string variables
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### Summary by CodeRabbit
- Refactor: Updated `GoogleSheetsNodeContent` component to use the
`options` prop instead of `action`, and integrated the `useTypebot` hook
for better functionality.
- Style: Improved UI text and layout in `GoogleSheetsSettings.tsx`,
enhancing user experience when selecting rows.
- Refactor: Simplified rendering logic in `BlockNodeContent.tsx` by
directly calling `GoogleSheetsNodeContent` component, improving code
readability.
- Bug Fix: Enhanced `injectVariableValuesInPictureChoiceBlock` function
to handle different types of values for titles, descriptions, and
picture sources, fixing issues with variable value injection.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Closes#848
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### Summary by CodeRabbit
- New Feature: Added "Environment name" as a new value type in the
SetVariable function, allowing users to distinguish between 'web' and
'whatsapp' environments.
- Refactor: Simplified session state handling in `resumeWhatsAppFlow.ts`
for improved code clarity.
- Refactor: Updated `startWhatsAppSession.ts` to include an initial
session state with WhatsApp contact and expiry timeout, enhancing
session management.
- Bug Fix: Improved null handling in `executeSetVariable.ts` for
'Contact name' and 'Phone number', preventing potential issues with
falsy values.
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