fix(translations): use trimmed in all blocktrans blocks TASK-1553

[rgraber]

🗒️ Checklist

1. run linter locally
2. update all related docs (API, README, inline, etc.), if any
3. draft PR with a title <type>(<scope>)<!>: <title> TASK-1234
4. tag PR: at least frontend or backend unless it's global
5. fill in the template below and delete template comments
6. review thyself: read the diff and repro the preview as written
7. open PR & confirm that CI passes
8. request reviewers, if needed
9. delete this section before merging

📖 Description

Developer-only changes

💭 Notes

This was done with a simple find-and-replace. To test it, I compiled the messages and ran
find . -name django.po | xargs awk '{ if (lastline == "msgid \"\"" && $0 ~ "\"\\\\n\"") {print FILENAME, $0} {lastline=$0}}' | wc -l and checked to make sure the output was empty.

The awk command looks for sections of a .po file that look like

msgid ""
"\n"

, which is what it looks like when a translation string begins with a newline char. The full command lists all po files, checks for that sequence of lines using awk for each one, and counts the total. On main, the count was 257. Using this branch, the count is 2. It should be 0, but for some reason makemessages had trouble with zh-Hant and zh-Hans so it didn't actually update those files. That doesn't matter for this PR.

👀 Preview steps

1. In the kpi container run python ./manage makemessages -a
2. Locally, cd to the locale directory inside kpi
3. run find . -name django.po | xargs awk '{ if (lastline == "msgid \"\"" && $0 ~ "\"\\\\n\"") {print FILENAME, $0} {lastline=$0}}' | wc -l
4. 🔴 [on main] The result will be > 200
5. 🟢 [on PR] The result will be 0 (or 2, if django has trouble compiling zh-Hant and zh-Hans. Not sure if that was a local issue).

[noliveleger]

@rgraber I guess in your preview steps you meant:

python ./manage.py makemessages -a

[noliveleger]

Not tested through Transifex but it did the job in POedit.