Add Clear Documentation for Google Sheets Integration

Please provide in-app explanations or detailed documentation for the different blocks available in the Google Sheets integration – specifically:

• Add Row

• Update Row

• Clear Row

• Delete Row

Currently, these blocks appear without any guidance on:

• How they differ from each other

• What each one actually does

• When and how to use them with variables or user inputs

• What setup is needed in the Google Sheet (e.g., headers, ID columns)

Why this matters:
As a chatbot developer using Chatling, I find the Google Sheets integration very useful but also confusing without proper documentation. It's hard to use these blocks correctly without knowing their purpose and behavior. Clear examples and tooltips would help users integrate Google Sheets confidently and avoid errors.

Suggested Improvements:

• Add tooltips or info icons next to each block

• Provide sample use cases or templates

• Explain what "Clear Row" vs. "Delete Row" actually does (e.g., does "clear" empty cell values but keep the row? does "delete" shift rows up?)

Looking forward to seeing this improvement for a smoother experience with Google Sheets integrations.