feat(vue-renderer): add csp option for csp v1 compatibility

[williamchong]

Fixes CSP compatibility mentioned in #5627

Types of changes

• Bug fix (a non-breaking change which fixes an issue)
• New feature (a non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Description

Add a csp option unsafeInlineCompatiblity which allows 'unsafe-inline' and hash based rules to appear together.
Not sure if the option name can be shorter.
Resolves: #5627

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly. (PR: #)
• I have added tests to cover my changes (if not applicable, please state why)
• All new and existing tests are passing.

[TheAlexLichter]

LGTM ☺️

[clarkdo]

@williamchong007 A pr for updating doc will be great.

[koehn]

This would have been better had you spelled compatability correctly…

[pi0]

@koehn It is already fixed with #6583 can you spot typo in docs?

[koehn]

Not sure if this is what you mean; AFAICT it's still in use as of 2.12.2. Am I looking in the wrong place?

https://nuxtjs.org/api/configuration-render/

[pi0]

Patch is available since 2.10.2. You can use unsafeInlineCompatibility