Enhancement of i18n #79

[motchie]

Enhancement of i18n

Hi,
This is my experimental implementation of i18n.

I referred to past issue #79 comment.
#79 (comment)

Here is my PR's policy.

do electron apps pick up the user's operating system locale (e.g. to check which language the OS is set to)?

Possible. I adopted Locales API of electron.

splitting out all strings into separate language/translation files (so no actual strings are hard-coded into the html/js, but it's all handled by grabbing strings from a language file

I think it's possible like Version Number implementation, but this time I adopted more simpe policy. Which is:

• Splitting out all strings into language files.
• Language files are auto detected. When missing, it's fall back to English.
• In English, Nothing has changed in the UI.
• No modification to original HTML.
• changes in controller/js is minimum.
• All translations are executed in view/js with label and replace() .

providing options/settings for users to change the language (so they can set it to something other than the OS locale if they wish)

No implementation yet.
If PR is adopted, I would like to enhance it.

Example Screenshot

Environment

This is my development environment.

• OS: Darwin x64 18.7.0
• Visual Studio Code: 1.38.0
• last commit: c8ece59

[ferllings]

Thanks for all your PRs. I'll try to review them asap.