Improve Swedish translations

[carlottostromstedt]

I saw translations being improved when looking at the last changelog so i thought i could help by improving the swedish translations.

There were some translations missing (compared to en.yml) and many translations were wrong. Should be fixed now 👍

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.02 🎉

Comparison is base (c874099) 99.08% compared to head (65d4d8a) 99.11%.

❗ Current head 65d4d8a differs from pull request most recent head 54fa3a5. Consider uploading reports for the commit 54fa3a5 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7993      +/-   ##
==========================================
+ Coverage   99.08%   99.11%   +0.02%     
==========================================
  Files         197      197              
  Lines        4945     4945              
==========================================
+ Hits         4900     4901       +1     
+ Misses         45       44       -1     

see 1 file with indirect coverage changes

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[javierjulio]

Thanks!