change project class suffix to _app.gox for xgo

[tsingbx]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.62%. Comparing base (f1eeefc) to head (0ff9c80).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2346   +/-   ##
=======================================
  Coverage   92.62%   92.62%           
=======================================
  Files          34       34           
  Lines       11320    11320           
=======================================
  Hits        10485    10485           
  Misses        677      677           
  Partials      158      158           

☔ View full report in Codecov by Sentry.
📢 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.