Update Vietnamese translations

[vinhtantran]

Description

Add Vietnamese translations for phrases added since its last edits.

Related Issue

This PR fixes or closes issue: none

Motivation and Context

An outdated Vietnamese translations and spotted English phrases in the current version.

How Has This Been Tested

Carefully check the brackets and places.

Types of changes

• 🐛 Bug fix (non-breaking change which fixes an issue)
• 🚀 New feature (non-breaking change which adds functionality)
• 🌎 Translation (addition or update a translation)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have tested the change locally.
• I followed the steps if I add a new language .

[piitaya]

The build doesn't pass, the json is not valid.

[vinhtantran]

The build doesn't pass, the json is not valid.

Thank you. There was an excess comma towards the end that makes JSON invalid. It has been fixed and the format has been validated.

[piitaya]

Perfect ! Thanks !