[frontend] remove duplicates in translations

[lndrtrbn]

Proposed changes

• Remove duplicates in translations files

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8c0f5c8) 64.76% compared to head (c91361e) 64.76%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5777   +/-   ##
=======================================
  Coverage   64.76%   64.76%           
=======================================
  Files         516      516           
  Lines       60973    60973           
  Branches     4870     4871    +1     
=======================================
  Hits        39489    39489           
  Misses      21484    21484           

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