v3.11.0

@stylable/core

• add new directive -st-partial-mixin allowing to mix in only declarations that include overriding Stylable variables
• allow importing string values exported from a JavaScript module, which in turn are treated as Stylable variables (used with value(varName))

@stylable/webpack-plugin

• resolve bug where the webpack-plugin would lose stylesheets used in JavaScript files in cases where the bundle is split to chunks

Misc

• Upgrade all external dependencies, including postcss@8