Add Brazilian Portuguese (pt-BR) translation support to Kan (#276)

* adding Brazilian Portuguese translation; added a repository on Docker Hub to use in Umbrel — version ptbr jovaniojunior/kan-ptbr:latest

* add notes to changelog.md

* adjust pt-BR date format in date-fns

* improve Portuguese integration across code functions and other small pt-BR tweaks

* chore: gen missing translations

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Co-authored-by: Henry <henry_ball@hotmail.co.uk>

apps/web/src/utils/i18n.ts

@@ -22,6 +22,8 @@ const loadMessages = async (locale: Locale) => {
       return (await import("~/locales/ru/messages")).messages;
     case "pl":
       return (await import("~/locales/pl/messages")).messages;
+    case "ptbr":
+      return (await import("~/locales/ptbr/messages")).messages;
     default:
       return enMessages;
   }