Translate to Vietnamese (#1591)

* Translate to Vietnamese

* Add translation for Vietnamese

* - Remove  invalid properties and duplicated values.
- Add blank lines to align with the original format of en_GB file

* fix eof

* add empty lines to align with the template format. The number of line is equal with the reference en_GB file now

* change some translations to be more natural and easier to understand

scripts/ignore_translation.toml

@@ -239,3 +239,8 @@ ignore = [
 ignore = [
     'language.direction',
 ]
+
+[vi_VN]
+ignore = [
+     'language.direction',
+]