Added comments and did some code clean up

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>

Code/Framework/AzQtComponents/AzQtComponents/Components/Widgets/Card.cpp

@@ -347,7 +347,7 @@ namespace AzQtComponents
         config.toolTipPaddingInPixels = 5;
         config.headerIconSizeInPixels = CardHeader::defaultIconSize();
         config.rootLayoutSpacing = 0;
-        config.warningIcon = QStringLiteral(":/Cards/img/UI20/Cards/warning.svg");
+        config.warningIcon = QStringLiteral(":/Notifications/warning.svg");
         config.warningIconSize = {24, 24};
         config.disabledIconAlpha = 0.25;
 

Code/Framework/AzQtComponents/AzQtComponents/Components/resources.qrc

@@ -424,7 +424,6 @@
     <file>img/UI20/Cards/menu_ico.png</file>
     <file>img/UI20/Cards/error_icon.png</file>
     <file>img/UI20/Cards/warning.png</file>
-    <file>img/UI20/Cards/warning.svg</file>
     <file>img/UI20/Cards/search.png</file>
     <file>img/UI20/Cards/close.png</file>
     <file>img/UI20/Cards/error-conclict-state.svg</file>

Code/Framework/AzQtComponents/AzQtComponents/Images/resources.qrc

@@ -30,6 +30,7 @@
         <file alias="checkmark.svg">Notifications/checkmark.svg</file>
         <file alias="download.svg">Notifications/download.svg</file>
         <file alias="link.svg">Notifications/link.svg</file>
+        <file alias="warning.svg">Notifications/warning.svg</file>
     </qresource>
     <qresource prefix="/Outliner">
         <file alias="sort_a_to_z.svg">Outliner/sort_a_to_z.svg</file>