fix(billing): Avoid double OTP during add card via stripe

[Bowrna]

Removed setup intent and going only with payment intent and storing the card information as part of it. Verfied in local and this persists the card info for future usage

[greptile-apps]

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[codecov]

Codecov Report

❌ Patch coverage is 71.23288% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 49.83%. Comparing base (7d37130) to head (afe621c).
⚠️ Report is 217 commits behind head on develop.

Files with missing lines	Patch %	Lines
press/api/billing.py	12.50%	21 Missing ⚠️

❌ Your patch check has failed because the patch coverage (71.23%) is below the target coverage (75.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #6371      +/-   ##
===========================================
- Coverage    49.85%   49.83%   -0.02%     
===========================================
  Files          944      945       +1     
  Lines        78378    78394      +16     
  Branches       350      355       +5     
===========================================
- Hits         39073    39068       -5     
- Misses       39281    39303      +22     
+ Partials        24       23       -1     

Flag	Coverage Δ
dashboard	59.78% <100.00%> (-0.87%)	⬇️

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 71.23288% with 21 lines in your changes missing coverage. Please review.
✅ Project coverage is 49.83%. Comparing base (7d37130) to head (afe621c).
⚠️ Report is 869 commits behind head on develop.

Files with missing lines	Patch %	Lines
press/api/billing.py	12.50%	21 Missing ⚠️

❌ Your patch status has failed because the patch coverage (71.23%) is below the target coverage (75.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #6371      +/-   ##
===========================================
- Coverage    49.85%   49.83%   -0.02%     
===========================================
  Files          944      945       +1     
  Lines        78378    78394      +16     
  Branches       350      355       +5     
===========================================
- Hits         39073    39068       -5     
- Misses       39281    39303      +22     
+ Partials        24       23       -1     

Flag	Coverage Δ
dashboard	59.78% <100.00%> (-0.87%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.