Fix the CORS logic on the stats endpoints

[Andrew-Dickinson]

Whoops origin != host

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 83.33333% with 1 line in your changes missing coverage. Please review.

Project coverage is 94.41%. Comparing base (f58f103) to head (3330318). Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/meshweb/views/website_stats.py	83.33%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #719 +/- ## ========================================== + Coverage 94.21% 94.41% +0.20% ========================================== Files 86 86 Lines 3542 3544 +2 ========================================== + Hits 3337 3346 +9 + Misses 205 198 -7 ```

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