cleanup
compare virtual files by equals, not ==
PushedFilePropertiesUpdater: don't start dumb mode because of vfs changes outside the project
an internal inspection checking that virtual files are compared with "equals"
rerun browser on performed fix
Revert "Fix list selection background when unfocused"

This reverts commit ae7605573fcc59258aa7ec3f6a607b49470bfdbf as it breaks much more than it fixes.
optimization: avoid unnecessary disk access operations