Fix labels of Vietnamese (Windows-1258) encoding

[aerhard]

Requirements

• Filling out the template is required. Any pull request that does not include enough information to be reviewed in a timely manner may be closed at the maintainers' discretion.
• All new code requires tests to ensure against regressions

Description of the Change

Adjust labels of the windows1258 (Vietnamese) encoding to refer to 'Windows 1258' (Vietnamese) rather than 'Windows 1254' (Turkish).

Alternate Designs

None

Benefits

The windows1258 encoding will get displayed to users referring to the correct Windows code page 'Windows 1258'.

Possible Drawbacks

None

Applicable Issues

None

[einarogco]

{
"name": "Python 3",
"build": {
"dockerfile": "Dockerfile",
"context": "..",
"args": {
// Update 'VARIANT' to pick a Python version: 3, 3.6, 3.7, 3.8, 3.9
"VARIANT": "3",
// Options
"INSTALL_NODE": "true",
"NODE_VERSION": "lts/*"
}
},

// Set default container specific settings.json values on container create.
"settings": {
"terminal.integrated.shell.linux": "/bin/bash",
"python.pythonPath": "/usr/local/bin/python",
"python.linting.enabled": true,
"python.linting.pylintEnabled": true,
"python.formatting.autopep8Path": "/usr/local/py-utils/bin/autopep8",
"python.formatting.blackPath": "/usr/local/py-utils/bin/black",
"python.formatting.yapfPath": "/usr/local/py-utils/bin/yapf",
"python.linting.banditPath": "/usr/local/py-utils/bin/bandit",
"python.linting.flake8Path": "/usr/local/py-utils/bin/flake8",
"python.linting.mypyPath": "/usr/local/py-utils/bin/mypy",
"python.linting.pycodestylePath": "/usr/local/py-utils/bin/pycodestyle",
"python.linting.pydocstylePath": "/usr/local/py-utils/bin/pydocstyle",
"python.linting.pylintPath": "/usr/local/py-utils/bin/pylint"
},

// Add the IDs of extensions you want installed when the container is created.
"extensions": [
"ms-python.python"
],

// Use 'forwardPorts' to make a list of ports inside the container available locally.
// "forwardPorts": [],

// Use 'postCreateCommand' to run commands after the container is created.
// "postCreateCommand": "pip3 install --user -r requirements.txt",

// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
"remoteUser": "vscode"
}