Revert "GSR Revamp"

[vcai122]

Reverts #224

[codecov]

Codecov Report

Attention: 74 lines in your changes are missing coverage. Please review.

Comparison is base (776dab2) 91.27% compared to head (67a605e) 89.87%.

Files	Patch %	Lines
backend/gsr_booking/api_wrapper.py	77.35%	53 Missing ⚠️
backend/gsr_booking/group_logic.py	83.63%	9 Missing ⚠️
backend/gsr_booking/models.py	30.76%	9 Missing ⚠️
backend/gsr_booking/views.py	84.21%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #236      +/-   ##
==========================================
- Coverage   91.27%   89.87%   -1.40%     
==========================================
  Files          58       59       +1     
  Lines        2417     2549     +132     
==========================================
+ Hits         2206     2291      +85     
- Misses        211      258      +47     

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[sentry-io]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ JSONDecodeError: Expecting value: line 1 column 1 (char 0) /api/gsr/book/ View Issue

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