[Projects] Project list not displayed when errors in fetching project children occur
Revert "Temporarily removing project support from default.pref for M2."

This reverts commit 3c65cd0026d9b828ea4a4cf5d91bd39a165062e4.
Bug 418027 - Add editor settings for word wrap and print margin
explorer maybe gone by the time the root is loaded
make folder nav lines even ligher
Bug 418034 - Drop down menus on folder nav are not positioned under button