284 Implement pretest questions

[milkdromeda]

Proposed Changes

Created new experiment section with pretest questions, Added line-checking to them. Sets up a significant part of memorylab learning activity for formal study

Closes #284

I did not fix the following bug:

• Q3: extra ints are not flagged in final submission
• Q2 does not flag extra ints for line-checking

Type of Change

Type	Applies?
🚨 Breaking change (fix or feature that would cause existing functionality to change)
✨ New feature (non-breaking change that adds functionality)	X
🐛 Bug fix (non-breaking change that fixes an issue)
🎨 User interface change (change to user interface; provide screenshots)
♻️ Refactoring (internal change to codebase, without changing functionality)
🚦 Test update (change that only adds or modifies tests)
📚 Documentation update (change that only updates documentation)
📦 Dependency update (change that updates a dependency)
🔧 Internal (change that only affects developers or continuous integration)

Checklist

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• I have added tests for my changes, if applicable.
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• I have updated the project documentation, if applicable.
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Questions and Comments

Used AI to write code based on #264