Fix the issues reported by phpcs

Problem/Motivation

PHPCS reports the following errors:

C:\xampp\htdocs\backendassignment\web\modules\contrib>phpcs --standard=Drupal,DrupalPractice --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml,twig imce_copylink

FILE: C:\xampp\htdocs\backendassignment\web\modules\contrib\imce_copylink\imce_copylink.css
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FOUND 3 ERRORS AFFECTING 2 LINES
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 1 | ERROR | [x] End of line character is invalid; expected "\n" but found "\r\n"
 2 | ERROR | [x] Spaces must be used to indent lines; tabs are not allowed
 2 | ERROR | [x] Line indented incorrectly; expected 2 spaces, found 1
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PHPCBF CAN FIX THE 3 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: C:\xampp\htdocs\backendassignment\web\modules\contrib\imce_copylink\src\Plugin\ImcePlugin\Copylink.php
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FOUND 6 ERRORS AND 1 WARNING AFFECTING 7 LINES
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  1 | ERROR   | [x] End of line character is invalid; expected "\n" but found "\r\n"
  5 | WARNING | [x] Unused use statement
 16 | ERROR   | [x] There must be exactly one newline after the class comment
 18 | ERROR   | [ ] Class name doesn't match filename; expected "class Copylink"
 24 | ERROR   | [x] Short array syntax must be used to define arrays
 34 | ERROR   | [x] Expected 1 blank line after function; 0 found
 35 | ERROR   | [x] The closing brace for the class must have an empty line before it
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PHPCBF CAN FIX THE 6 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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Time: 600ms; Memory: 6MB

Steps to reproduce

Run the phpcs command on the module.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes