Fix phpcs errors and warnings

Problem/Motivation

Phpcs is pointing some errors and warnings on this module.

$ phpcs --standard=Drupal technocrat_companion

FILE: ...min\Desktop\task\technocrat_companion\src\Generators\SubthemeGenerator.php
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FOUND 2 ERRORS AND 3 WARNINGS AFFECTING 5 LINES
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   1 | ERROR   | [x] End of line character is invalid; expected "\n" but found
     |         |     "\r\n"
  53 | ERROR   | [ ] The array declaration extends to column 82 (the limit is
     |         |     80). The array content should be split up over multiple
     |         |     lines
 140 | WARNING | [x] There must be no blank line following an inline comment
 392 | WARNING | [x] There must be no blank line following an inline comment
 399 | WARNING | [x] There must be no blank line following an inline comment
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PHPCBF CAN FIX THE 4 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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Time: 446ms; Memory: 10MB

Proposed resolution

Fix all these notices.