[GH-1080] Update truncation logic for strings

[raghavaggarwal2308]

Summary

In the existing implementation, truncation was occurring at the byte level, which could lead to incorrect handling of multi-byte characters, such as UTF-8 characters.

Changes:

• Changes have been made to the logic of string truncation to account for multi-byte characters.
• The usage of the unicode/utf8 package has been added to accurately count characters in the string.
• String truncation now occurs at the character level, ensuring proper behavior when dealing with multi-byte characters.

Screenshots:
Assumption: Max char length is 30

Earlier:

Now:

Ticket Link

Fixes #1080