fix: Add translation for showing mandatory fields in error msg (backport #44386)

[mergify]

Issue: Support Ticket - 25936

Important

Backport require for both V-15 and V-14

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This is an automatic backport of pull request #44386 done by Mergify.

[mergify]

Cherry-pick of f42ec6a has failed:

On branch mergify/bp/version-14-hotfix/pr-44386
Your branch is up to date with 'origin/version-14-hotfix'.

You are currently cherry-picking commit f42ec6a124.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   erpnext/selling/doctype/quotation/quotation.py

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally