Changes to Addon First Run Dialog (#17518)

* Changes to Addon First Run Dialog

Updated Addon Manager first run dialog as per issue no. #17317

* Incorporated review comments

* Update src/Mod/AddonManager/addonmanager_preferences_defaults.json

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

* Update src/Mod/AddonManager/addonmanager_preferences_defaults.json

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

* Removed default assigns as requested

* Defaults updated

---------

Co-authored-by: Chris Hennes <chennes@pioneerlibrarysystem.org>

src/Mod/AddonManager/Resources/AddonManager.qrc

@@ -2,6 +2,7 @@
     <qresource>
         <file>icons/preferences-addon_manager.svg</file>
         <file>icons/3D_Printing_Tools_workbench_icon.svg</file>
+        <file>icons/AddonMgrWithWarning.svg</file>
         <file>icons/A2plus_workbench_icon.svg</file>
         <file>icons/AirPlaneDesign_workbench_icon.svg</file>
         <file>icons/ArchTextures_workbench_icon.svg</file>