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Removed bottom margin on LineHeightControl component
Several UI components currently ship with styles that give them bottom margins. This can make it hard to use them in arbitrary layouts, where you want different amounts of gap or margin between components.
To better suit modern layout needs, we will gradually deprecate these bottom margins. A deprecation will begin with an opt-in period where you can choose to apply the new margin-free styles on a given component instance. Eventually in a future version, the margins will be completely removed.