Update lv_LV.ts

[predefinedx]

PR Checklist

Please check if your PR fulfills the following requirements:

• [ +] The commit message follows our guidelines: https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/CONTRIBUTING.md#commit
• [ +] Tests for the changes have been added (for bug fixes / features)
• [+ ] Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Application (the showcase website) / infrastructure changes
[+ ] Other... Please describe: lv_LV locale fixes (fixed spelling, added missing translations, etc.)

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

[ ] Yes
[+ ] No

Other information

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.57%. Comparing base (bfead91) to head (af45663).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #8516   +/-   ##
=======================================
  Coverage   91.57%   91.57%           
=======================================
  Files         533      533           
  Lines       18337    18337           
  Branches     2800     2800           
=======================================
  Hits        16793    16793           
  Misses       1226     1226           
  Partials      318      318           

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