Haehnchen#2248 translation targets from different provider must be unique

Author: Haehnchen

src/main/java/fr/adrienbrault/idea/symfony2plugin/translation/dict/TranslationUtil.java

@@ -190,6 +190,8 @@ public static PsiElement[] getTranslationPsiElements(@NotNull Project project, @
  return Arrays.stream(getTranslationProviders())
  .map(translationProvider -> translationProvider.getTranslationTargets(project, translationKey, domain))
  .flatMap(Collection::stream)
+ .collect(Collectors.toSet())
+ .stream()
  .map(element -> new TranslationKeyTargetFakePsiNavigationItem(ProjectUtil.getProjectDir(project), element))
  .sorted(Comparator.comparingInt(TranslationKeyTargetFakePsiNavigationItem::getWeight))
  .toArray(PsiElement[]::new);