Twig_Error_Syntax: {% trans %} error in system-modules-uninstall.html.twig

Moving remaining issues for 'Stable theme' to 'Stable 9 theme' based on #3332485-5: [Meta] Stable issue triage → by markconroy.

I don't think this is an issue any more.

After installing standard profile, I tried the following tests:

1. Set stable9 as my admin theme, uninstall contact module (via UI). No errors reported.
2. Set stable9 as my admin theme and default theme, uninstall contact module (via UI). No errors reported.
3. Set stable9 as my admin theme and default theme, uninstall Claro and Olivero so only stable9 was left enabled, uninstall contact module (via UI). No errors reported.

If this is still an issue, we will need an updated issue summary and steps to reproduce.

If this is still an issue, I suggest instead of removing this line
The following reason prevents {{ module.module_name }} from being uninstalled:

We look to set {{ module.module_name }} to be a simple variable, so just inside the {% for %}, something like this:

{% for module in modules %}
  {% set module_name = module.module_name %}
{% endfor %}

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Thanks to Code Enigma for sponsoring my time to work on this.

Also, the patches we have for this so far are for stable and stable9, but stable is not part of Drupal core any more. So at a very minimum we need to update those to refer to stable9 only.