Update msgids for 0.17.3 (currently unreleased as contentpacks)

[benjaoming]

Summary

@mrpau-eugene

1. When creating new msgids, you can use the make msgids shortcut.
2. Create a PR or add to an existing PR. The en/django.po and en/djangojs.po files are tracked in Git. (this PR is an example - you can merge it when you've seen it!)
3. After that, the new django.po and djangojs.po files have to be uploaded to CrowdIn. This is a manual step for now, so you need to log in to crowdin and navigate to this page: https://crowdin.com/project/ka-lite/settings#files

[codecov[bot]]

Codecov Report

Merging #5515 into 0.17.x will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           0.17.x    #5515   +/-   ##
=======================================
  Coverage   62.77%   62.77%           
=======================================
  Files         117      117           
  Lines        6555     6555           
=======================================
  Hits         4115     4115           
  Misses       2440     2440

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[mrpau-eugene]

Thanks for this one @benjaoming .. I just have one problem when visiting the crowdin link you gave me. It says:

Something went wrong Project does not exist or access to this project is limited.

[benjaoming]

Ah right, could you try again? You are now manager of the project, so you can rebuild and upload .po files.

[benjaoming]

Closing this in favour of #5517