fix(i18n): translate «add a Entity» with context in french

--HG--
branch : seda21
4 jobs for branch/seda21 in 13 minutes and 12 seconds (queued for 14 minutes and 13 seconds)
Status Job ID Name Coverage
  Lint
passed check-manifest #427163

00:02:03

passed flake8 #427162

00:02:21

 
  Tests
failed py3 #427164

00:10:50

 
  Build Debian Package
skipped build-debian #427165
manual
 
Name Stage Failure
failed
py3 Tests
Uploading artifacts for failed job
py3-deprecated-warnings.json: found 1 matching files and directories
Uploading artifacts...
Uploading artifacts as "archive" to coordinator... ok
id=427164 responseStatus=201 Created token=xkohHGLG
Uploading artifacts...
report.xml: found 1 matching files and directories

Uploading artifacts as "junit" to coordinator... ok
id=427164 responseStatus=201 Created token=xkohHGLG
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1