Update translations for Skosmos 2.17 release

[osma]

Reasons for creating this PR

Update to the latest UI translations available on Transifex.

Link to relevant issue(s), if any

• Closes Typo on a Spanish label on the search page #1536

Description of the changes in this PR

• update Spanish translations (by Meron Ewketu)
• update French translations (by plecor)

Known problems or uncertainties in this PR

The same updates should be done for Skosmos 3 as well.

Checklist

• phpUnit tests pass locally with my changes
• I have added tests that show that the new code works, or tests are not relevant for this PR (e.g. only HTML/CSS changes)
• The PR doesn't reduce accessibility of the front-end code (e.g. tab focus, scaling to different resolutions, use of .sr-only class, color contrast)
• The PR doesn't introduce unintended code changes (e.g. empty lines or useless reindentation)

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3b9489a) 70.22% compared to head (5eef18f) 70.22%.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1569   +/-   ##
=========================================
  Coverage     70.22%   70.22%           
  Complexity     1665     1665           
=========================================
  Files            32       32           
  Lines          4295     4295           
=========================================
  Hits           3016     3016           
  Misses         1279     1279           

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