fix(wakatime): wakatime stats fetcher

[anuraghazra]

As mentioned in #865 in this comment #865 (comment) to get the default preference of the user's stats we are changing the stats fetcher as per needs.

This way users will also be able to control the default time range they wanna show.

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[codecov]

Codecov Report

Merging #871 (267c5c5) into master (799a8c1) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #871   +/-   ##
=======================================
  Coverage   93.96%   93.96%           
=======================================
  Files          22       22           
  Lines         679      679           
  Branches      189      189           
=======================================
  Hits          638      638           
  Misses         37       37           
  Partials        4        4           

Impacted Files	Coverage Δ
src/translations.js	80.00% <ø> (ø)
src/fetchers/wakatime-fetcher.js	90.00% <100.00%> (ø)

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