Display informations on hover

[scripthunter7]

For example, show descriptions and documentation links for:

• modifiers
• scriptlets
• Extended CSS pseudo classes

Also, we need to introduce an option within extension settings where this feature can be adjusted.

Reference: https://code.visualstudio.com/api/language-extensions/programmatic-language-features#show-hovers

Needed: AdguardTeam/AGLint#192

[Alex-302]

Will there be an option in the settings to enable/disable this feature?

[scripthunter7]

sure