Add translations

[nortigo]

Please let me know if there is something wrong. I'll fix it.

[codecov]

Codecov Report

Merging #179 (b4b9668) into master (743b538) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #179      +/-   ##
==========================================
+ Coverage   90.98%   91.00%   +0.02%     
==========================================
  Files          12       12              
  Lines         377      378       +1     
==========================================
+ Hits          343      344       +1     
  Misses         34       34              

Impacted Files	Coverage Δ
defender/utils.py	98.52% <100.00%> (+<0.01%)	⬆️

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[kencochrane]

LGTM but I'm not very familiar with translations, so it might be good to get another review before we merge.