Add phase 8 percent localization string

[pmachapman]

This PR adds a missing resource string for the final phase of a string when a percentage is reported.

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This change is 

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.42%. Comparing base (05b66ef) to head (5992567).
⚠️ Report is 106 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3363   +/-   ##
=======================================
  Coverage   82.42%   82.42%           
=======================================
  Files         607      607           
  Lines       35571    35571           
  Branches     5778     5802   +24     
=======================================
  Hits        29319    29319           
+ Misses       5389     5373   -16     
- Partials      863      879   +16     

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[Nateowami]

Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @pmachapman)