Changes in this commit:
- Added comments to dialog code in CryEdit.cpp and CryEditDoc.cpp
- Moved Code/Framework/AzQtComponents/AzQtComponents/Components/img/UI20/Cards/warning.svg to Code/Framework/AzQtComponents/AzQtComponents/Images/Notifications/warning.svg
- Improved the hover message over prefab settings in EditorPreferencesPageGeneral.cpp
- Fixed a syntax error in Editor.qss
Signed-off-by: srikappa-amzn <srikappa@amazon.com>