[dev-v5] Add cleanup for counterbadge for firefox changes.#4446

vnbaaij merged 2 commits intomicrosoft:dev-v5microsoft/fluentui-blazor:dev-v5from

Tyme-Bleyaert:v5/fix/fluent-counter-badge/offset-firefoxTyme-Bleyaert/fluentui-blazor:v5/fix/fluent-counter-badge/offset-firefoxCopy head branch name to clipboard