Increased code coverage

[bhaskarkishore]

Further increased code coverage. Fully closes #78 .

[codecov-commenter]

Codecov Report

Merging #80 (8c60efb) into main (4c4d0d1) will increase coverage by 11.26%.
The diff coverage is 65.95%.

@@             Coverage Diff             @@
##             main      #80       +/-   ##
===========================================
+ Coverage   24.68%   35.94%   +11.26%     
===========================================
  Files          23       23               
  Lines        1495     1697      +202     
  Branches      319      375       +56     
===========================================
+ Hits          369      610      +241     
+ Misses        985      847      -138     
- Partials      141      240       +99     

Impacted Files	Coverage Δ
src/db/mod.rs	62.50% <ø> (ø)
src/proxy.rs	15.81% <ø> (ø)
src/rpc/responses.rs	5.37% <0.00%> (+5.37%)	⬆️
src/document.rs	12.00% <50.00%> (+12.00%)	⬆️
src/moderation.rs	45.00% <60.78%> (+45.00%)	⬆️
src/rpc/mod.rs	52.87% <64.28%> (+52.87%)	⬆️
src/db/tests.rs	69.23% <69.23%> (ø)
src/http/mod.rs	70.14% <75.00%> (+22.44%)	⬆️
... and 3 more