[console] Review the coding standard of all generators

[hjuarez20]

Problem/Motivation

We need to review all the code generated by the generators to verify if the code has the Drupal coding standard.

Details to include:

• Why are we doing this? Above all, a summary should explain why a change is needed, in a few short sentences.

Commands to review:

• [x] generate:ajax:command
• [x] generate:authentication:provider
• [ ] generate:block:type
• [x] generate:breakpoint
• [x] generate:cache:context
• [x] generate:command
• [x] generate:composer
• [ ] generate:controller
• [x] generate:entity:bundle
• [x] generate:entity:config
• [ ] generate:entity:content
• [x] generate:event:subscriber
• [x] generate:form
• [x] generate:form:alter
• [x] generate:form:config
• [x] generate:help
• [x] generate:jstest
• [x] generate:module
• [x] generate:module:file
• [x] generate:permissions
• [ ] generate:plugin:block
• [ ] generate:plugin:ckeditorbutton
• [ ] generate:plugin:condition
• [ ] generate:plugin:field
• [ ] generate:plugin:fieldformatter
• [ ] generate:plugin:fieldtype
• [ ] generate:plugin:fieldwidget
• [ ] generate:plugin:imageeffect
• [ ] generate:plugin:imageformatter
• [ ] generate:plugin:mail
• [ ] generate:plugin:migrate:dataparser
• [ ] generate:plugin:migrate:process
• [ ] generate:plugin:migrate:source
• [ ] generate:plugin:queue
• [ ] generate:plugin:rest:resource
• [ ] generate:plugin:rules:action
• [ ] generate:plugin:rules:dataprocessor
• [ ] generate:plugin:skeleton
• [ ] generate:plugin:type:annotation
• [ ] generate:plugin:type:yaml
• [ ] generate:plugin:validationconstraint
• [ ] generate:plugin:views:field
• [ ] generate:post:update
• [ ] generate:profile
• [ ] generate:routesubscriber
• [ ] generate:service
• [ ] generate:site:alias
• [ ] generate:theme
• [ ] generate:theme:settings
• [ ] generate:twig:extension
• [ ] generate:update