Fix TypeError in response handling with f-string formatting for suggestion values

[mugeshk97]

This pull request addresses a TypeError encountered when concatenating a string with non-string values (such as integers) in the response processing logic. The issue was fixed by using f-string formatting to properly handle different data types in the suggestion values. This ensures that both int and str types are correctly converted to strings for concatenation.

Changes include:

• Replaced manual string concatenation with f-strings for better handling of variable types.
• Improved the readability and maintainability of the code by using a list comprehension for constructing the formatted response.

This fix ensures that the response handling logic works correctly even when var_body is an integer or other non-string type.

[chinganc]

@allenanie can you take a look?