Revisions controller getRevisionIds() should filter by language

The attached patch updates \Drupal\diff\Controller\PluginRevisionController::getRevisionIds() to filter the query by "langcode" and "revision_translation_affected"

The last submitted patch, 2: diff-3418442-2-filter-by-langcode.patch, failed testing. View results →
- codesniffer_fixes.patch Interdiff of automated coding standards fixes only.

updated the patch to check if the entity type is translatable before adding the new conditions to the query

Updates to the patch: Remove loading all revisions - This is no longer needed since the query is already filtered by language and translation affected.