Add missing coordiante_scalar to template validation

[BrianMichell]

Resolves #711

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.87%. Comparing base (c3ba558) to head (2b84771).
⚠️ Report is 190 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #713      +/-   ##
==========================================
+ Coverage   85.30%   88.87%   +3.56%     
==========================================
  Files          46       84      +38     
  Lines        2219     4531    +2312     
  Branches      306      296      -10     
==========================================
+ Hits         1893     4027    +2134     
- Misses        281      435     +154     
- Partials       45       69      +24     

☔ 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.