1639: Remove SearchGutterIconNavigationHandler and simplify markers#2485

VitaliyBoyko merged 7 commits intomagento:5.4.0-developmagento/magento2-phpstorm-plugin:5.4.0-developfrom

vitaliyboykocontributor:1639-java.lang.Throwable-Assertion-failed-Do-not-use-PsiElement-for-popup-model.-See-PsiTargetNavigatorvitaliyboykocontributor/magento2-phpstorm-plugin:1639-java.lang.Throwable-Assertion-failed-Do-not-use-PsiElement-for-popup-model.-See-PsiTargetNavigatorCopy head branch name to clipboard