Update use of SPEECH and BRAILLE strings where they were missed earlier

[dpvc]

This PR changes to explicit strings for their SPEECH and BRAILLEvisions, and corrects a typo in oneSEM` string. Should be a quick one.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.12%. Comparing base (106e5ac) to head (fe57982).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1560   +/-   ##
========================================
  Coverage    87.12%   87.12%           
========================================
  Files          392      392           
  Lines        89098    89098           
  Branches      5046     5046           
========================================
  Hits         77628    77628           
  Misses       11450    11450           
  Partials        20       20           

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