Not encode content from closure in data column

[vjik]

Q	A
Is bugfix?	✔️
New feature?	❌
Breaks BC?	❌
Fixed issues	-

[what-the-diff]

PR Summary

• Inclusion of New Library
  The developer has incorporated a tool named Yiisoft\Html\Html. This tool provides functionality for handling HTML construction in a simplified and secure manner.

• Enhancement in renderBody Method - Part 1
  Within the renderBody method, the developer has introduced a call to Html::encode for processing the content. This is a mechanism to ensure the content to be displayed is free from harmful scripts that potentially harm or exploit our system.

• Enhancement in renderBody Method - Part 2
  Another change in the renderBody method involves applying ->encode(false) to the 'cell' object. With this, the system will consider the raw data of the cell object as it is, without encoding. Therefore, it keeps the originality and authenticity of the content intact.