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Deleted 01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/01.geometrical-optics-general/frontmatter.yaml, 01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/01.geometrical-optics-general/topic.en.md, 01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/01.geometrical-optics-general/topic.es.md, 01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/01.geometrical-optics-general/topic.fr.md files