Added a instruction page to Quiz Engine

[aryajain14]

Fixes #100

Summary

• Made instruction page component in frontend
• Made a variable as test_format which indicates if its a full syllabus test or major test, etc.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.05% 🎉

Comparison is base (d7dd0bb) 94.65% compared to head (103b166) 94.70%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #97      +/-   ##
==========================================
+ Coverage   94.65%   94.70%   +0.05%     
==========================================
  Files          18       18              
  Lines         916      925       +9     
==========================================
+ Hits          867      876       +9     
  Misses         49       49              

Files Changed	Coverage Δ
app/models.py	100.00% <100.00%> (ø)
app/schemas.py	95.34% <100.00%> (+1.06%)	⬆️

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