[v18.x] lib,src,test: lint codebase according new rules
The v18.x-staging branch is having linting issues, creating a commit for fixing them is easier than running a rebase (the current proposal is ~500 commits)
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The v18.x-staging branch is having linting issues, creating a commit for fixing them is easier than running a rebase (the current proposal is ~500 commits)