Fix i19n on truncatedlist & friends to be sane

Use the proper counterpart tool for plurals rather than if > 1.
Fix up all the translation files respectively.

src/i18n/strings/pt.json

@@ -556,8 +556,10 @@
     "%(items)s and %(remaining)s others": "%(items)s e %(remaining)s outros",
     "%(items)s and one other": "%(items)s e um outro",
     "%(items)s and %(lastItem)s": "%(items)s e %(lastItem)s",
-    "and %(overflowCount)s others...": "e %(overflowCount)s outros...",
-    "and one other...": "e um outro...",
+    "and %(count)s others...": {
+        "other": "e %(count)s outros...",
+        "one": "e um outro..."
+    },
     "Are you sure?": "Você tem certeza?",
     "Attachment": "Anexo",
     "Autoplay GIFs and videos": "Reproduzir automaticamente GIFs e videos",