fix: teacher dashboard don't show levels for independent stu…

[sebp999]

…dents

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How Has This Been Tested?

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have linked this PR to a ZenHub Issue.

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This change is 

[faucomte97]

Hey @sebp999, since your last contribution we've made some changes, we now have an extra check which ensures contributors have signed our contributor agreement.

You can find the agreement and the instructions on how to sign it here: https://github.com/ocadotechnology/codeforlife-workspace/blob/main/CONTRIBUTING.md#become-a-contributor

[faucomte97]

Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @sebp999)

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game/views/level_selection.py line 197 at r1 (raw file):

                    )
                else:
                    if not level.owner.student.is_independent():

I think it would be better to fix the issue at the time that the student is released from the school rather than when the shared levels are being collected.

As in, when a teacher releases a student from a school and "turns them" into an independent student, that code should also find all of that student's custom levels, and for each level, remove all users from the list of "shared with" users, since independent student cannot share levels with anyone as of now.

The logic for releasing a student is within the portal repository however, so you'd have to look there

[faucomte97]

Closing as addressed by ocadotechnology/codeforlife-portal#2376 instead.