GitLab

Fix student removing bug

Closes #769

See merge request !541

Merge branch '732-integrer-la-version-20220302-de-zwibbler' of gricad-gitlab.univ-grenoble-alpes.fr:labnbook/labnbook

Merge branch '764-ajout-bibliotheque-dessin-genie-des-procedes' of gricad-gitlab.univ-grenoble-alpes.fr:labnbook/labnbook into speedtest-20220616

Merge branch '760-ajouter-un-slider-vertical-pour-modifier-la-largeur-du-rapport' of gricad-gitlab.univ-grenoble-alpes.fr:labnbook/labnbook into speedtest-20220616

Merge branch '761-LD_vertical_resizing' of gricad-gitlab.univ-grenoble-alpes.fr:labnbook/labnbook into speedtest-20220616

Merge branch '341-Fitex_table_UX' into 760-ajouter-un-slider-vertical-pour-modifier-la-largeur-du-rapport

Merge branch '760-ajouter-un-slider-vertical-pour-modifier-la-largeur-du-rapport' into 341-Fitex_table_UX