Use translate="no" for strings which should not be translated

[georgringer]

If strings should not be translated, the attribute translate="no" should be used

 <trans-unit id="some.id" translate="no">
  <source>don't translate me</source>
</trans-unit>

• [ ] Find strings which should not translated
• [ ] Fix in core

Related issues in core:

• https://forge.typo3.org/issues/89318