Merge pull request #4539 from alphagov/remove-app-b-class-names #4175

Job	Run time
CodeQL SAST scan / Analyze	1m 40s
Dependency Review scan / dependency-review-pr	0s
Lint JavaScript / Run Standardx	14s
Dependency Review scan / dependency-review-push	4s
Lint Ruby / Run RuboCop	11s
Run Pact tests / Verify pact tests	17s
Lint SCSS / Run Stylelint	15s
Security Analysis / Run Brakeman	28s
Test Ruby / Run RSpec	3m 10s
Test JavaScript / Run Jasmine	39s
	6m 58s

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