Make text selectable in Homeworks

Cette PR a été faite en rapport à ce sujet sur stack overflow, et ne pouvant pas déployer en local, je vous laisse essayer si ça marche

Please check if your PR fulfills the following requirements:

[ ] You can build successfully the whole project with your changes locally
[x] You use the coding conventions and the naming conventions of the project
[X] You use tabs for indentation
[x] You make sure that your PR is not a duplicate
[ ] This PR is ready to be reviewed and merged
[x] This PR merges into the development branch or in the specific branch of the feature you want to merge into
[x] There is no TODO in the code
[x] There is no spelling or grammatical errors in the code
[x] Details of the issue or feature are documented below
[x] This PR is not a breaking change (e.g. changes that would cause existing functionality to change)

Français `fr`
Rendre le texte sélectionnable dans les devoirs

Before merging this PR, you will need the approval of at least one of the following people:

So be patient ;)