Making `#language-settings-dialog` carry the same CSS class `.language-settings-dialog` to be able to override it in theme styles more sanely. Follow-up to Id9c8652820641d6. Bug: T175295 Change-Id: I1aa69f8701ed6d6cb2ed59cabf11332f2a10d21f
Making `#language-settings-dialog` carry the same CSS class `.language-settings-dialog` to be able to override it in theme styles more sanely. Follow-up to Id9c8652820641d6. Bug: T175295 Change-Id: I1aa69f8701ed6d6cb2ed59cabf11332f2a10d21f