Globally defined vee-validate rules + Use i18n to translate rule errors

[marwins]

Globally defined vee-validate rules + Use i18n to translate rule errors

Description

Create a nuxt plugin to globally configure vee-validate.
Configuration include global rule definition + defaultMessage function to translate validation message via i18n

Related Issue

#78

Motivation and Context

The project doesn't translate form validation message

How Has This Been Tested?

I tested the code on my own project and report development to SyliusVueStorefront2Frontend fork.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• 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 read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[dead-playmod]

Hey @marwins, this is a great idea, and after my quick look through everything seems fine, except that field names in login form (and I think in some other places too) aren't parsed correctly.

It seems to be caused by missing name prop on <ValidationProvider>, if you could fix that and resolve conflicts we could merge this PR if there isn't any other issues.