proper usage of translation parameters

[vitek-rostislav]

What is happening

Sometimes (AFAIK in admin controllers very often), we define translation messages with twig parameters (using {{ variableName }}) which makes the messages almost unusable outside the Twig. E.g. if I wanted to access the proper translation in PHP, I would need to use TwigEngine - and this is just not right.

I had to rewrite it e.g. in PaymentController::editAction() when I needed to use the translation in PaymentImageUploadCest::testSuccessfulImageUpload in #1425

Expected result

All translation messages use variables properly (%variableName%)

[stale]

This issue has been automatically marked as stale because there was no activity within the last 4 months (and it is quite a long time). It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically closed because there was no acivity within the last half a year.