fixed: Unopened namespaces resolver does not show the smart tag on type name in type extensions
extract InsertContext.adjustInsertPoint function
extract rest of Resolve unopened namespaces logic to Core project

make tests more end-to-end
fix general settings page layout

update settings dialog screenshots
decrease version from 1.3.0 to 1.2.6
fix a typo
Merge pull request #545 from vasily-kirichenko/fix-open-namespaces-for-type-extensions

Fix open namespaces for type extensions