refactor: Removes sample recording in Sentry

[frgfm]

This PR introduces the following modifications:

• removes the sample recording in Sentry (on top of recording errors, it was recording volume of transactions, which is hitting our quota)
• renames the API more accurately

[codecov[bot]]

Codecov Report

Merging #247 (3ef311d) into main (eb4fcc1) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #247   +/-   ##
=======================================
  Coverage   95.04%   95.04%           
=======================================
  Files          60       60           
  Lines        1393     1393           
=======================================
  Hits         1324     1324           
  Misses         69       69           

Flag	Coverage Δ
client	100.00% <ø> (ø)
unittests	94.78% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/app/main.py	76.00% <ø> (ø)
src/app/config.py	96.87% <100.00%> (ø)

... and 1 file with indirect coverage changes

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