Fix the issues reported by phpcs

Problem/Motivation

FILE: /var/www/html/vb/d_cont/colorizer_classes/README.md
-----------------------------------------------------------------------
FOUND 1 ERROR AND 1 WARNING AFFECTING 1 LINE
-----------------------------------------------------------------------
3 | WARNING | [ ] Line exceeds 80 characters; contains 272 characters
3 | ERROR | [x] Expected 1 newline at end of file; 0 found
-----------------------------------------------------------------------
PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
-----------------------------------------------------------------------

FILE: ...www/html/vb/d_cont/colorizer_classes/src/ColorizerClassesTwigExtension.php
--------------------------------------------------------------------------------
FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
--------------------------------------------------------------------------------
19 | WARNING | \Drupal calls should be avoided in classes, use dependency
| | injection instead
--------------------------------------------------------------------------------

Time: 58ms; Memory: 8MB

Steps to reproduce

Execute the command: phpcs --standard=Drupal,DrupalPractice --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml,twig colorizer_classes/

Remaining tasks

Patch review