Fix the issues reported by phpcs

Problem/Motivation

FILE: D:\xampp\htdocs\drupal_10\web\modules\contrib\aichat\aichat.info.yml
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FOUND 1 ERROR AFFECTING 1 LINE
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4 | ERROR | [x] Expected 1 newline at end of file; 0 found
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PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
--------------------------------------------------------------------------

FILE: D:\xampp\htdocs\drupal_10\web\modules\contrib\aichat\aichat.module
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FOUND 2 ERRORS AFFECTING 1 LINE
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1 | ERROR | [x] Missing file doc comment
1 | ERROR | [x] End of line character is invalid; expected "\n" but found "\r\n"
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PHPCBF CAN FIX THE 2 MARKED SNIFF VIOLATIONS AUTOMATICALLY
----------------------------------------------------------------------------------

Steps to reproduce
Use the below command with arguments.
phpcs --standard=Drupal,DrupalPractice --extensions=php,module,inc,install,test,profile,theme,info,txt,md,css,js,yml aichat/

Proposed resolution
Fix the phpcs issue