S allius/issue385 (#386)

* ignore translation and log files

* add quart-babel

* build and install translation files

* don't export the web-ui port 8127

- for security reason the user should use the
  HA ingress and not the direkt access to the web
  dashboard

* set 'lang' in html tag

app/translations/de/LC_MESSAGES/messages.po

@@ -0,0 +1,25 @@
+# German translations for tsun-gen3-proxy.
+# Copyright (C) 2025 ORGANIZATION
+# This file is distributed under the same license as the tsun-gen3-proxy
+# project.
+# FIRST AUTHOR <EMAIL@ADDRESS>, 2025.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: tsun-gen3-proxy 0.14.0\n"
+"Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
+"POT-Creation-Date: 2025-04-18 20:46+0200\n"
+"PO-Revision-Date: 2025-04-18 16:24+0200\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language: de\n"
+"Language-Team: de <LL@li.org>\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=utf-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Generated-By: Babel 2.17.0\n"
+
+#: src/web/templates/index.html:5
+msgid "My Dashboard"
+msgstr "Mein Dashboard"
+