remove web responses with 0 rows - fixes #361

[dblodgett-usgs]

No description provided.

[codecov-commenter]

Codecov Report

Merging #362 (3fcd14e) into main (423ddd6) will increase coverage by 0.24%.
Report is 3 commits behind head on main.
The diff coverage is 100.00%.

❗ Current head 3fcd14e differs from pull request most recent head bdf1f5f. Consider uploading reports for the commit bdf1f5f to get more accurate results

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@@            Coverage Diff             @@
##             main     #362      +/-   ##
==========================================
+ Coverage   86.55%   86.79%   +0.24%     
==========================================
  Files          24       24              
  Lines        2224     2227       +3     
==========================================
+ Hits         1925     1933       +8     
+ Misses        299      294       -5     

Files	Coverage Δ
R/geoserver_tools.R	94.11% <100.00%> (+2.81%)	⬆️

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