Enable translations

[olistic]

• Enable Greek 🇬🇷
• Enable Italian 🇮🇹
• Enable Serbian 🇷🇸

[codecov-io]

Codecov Report

Merging #231 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #231   +/-   ##
=======================================
  Coverage   92.64%   92.64%           
=======================================
  Files          92       92           
  Lines        1088     1088           
  Branches      165      165           
=======================================
  Hits         1008     1008           
  Misses         65       65           
  Partials       15       15

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