[ATOM-15769] Setting minimum angle to 0.5 degrees on disk lights to avoid visual artifacts that occur at values closer to 0. Also updating the outer cone angle max to be 90 degrees since it's measured from the center point, not all the way across. (#1260)

Gems/AtomLyIntegration/CommonFeatures/Code/Source/CoreLights/EditorAreaLightComponent.cpp

@@ -112,13 +112,13 @@ namespace AZ
                         ->DataElement(Edit::UIHandlers::Default, &AreaLightComponentConfig::m_enableShutters, "Enable shutters", "Restrict the light to a specific beam angle depending on shape.")
                             ->Attribute(Edit::Attributes::Visibility, &AreaLightComponentConfig::ShuttersMustBeEnabled)
                         ->DataElement(Edit::UIHandlers::Slider, &AreaLightComponentConfig::m_innerShutterAngleDegrees, "Inner angle", "The inner angle of the shutters where the light beam begins to be occluded.")
-                            ->Attribute(Edit::Attributes::Min, 0.0f)
-                            ->Attribute(Edit::Attributes::Max, 180.0f)
+                            ->Attribute(Edit::Attributes::Min, 0.5f)
+                            ->Attribute(Edit::Attributes::Max, 90.0f)
                             ->Attribute(Edit::Attributes::Visibility, &AreaLightComponentConfig::SupportsShutters)
                             ->Attribute(Edit::Attributes::ReadOnly, &AreaLightComponentConfig::ShuttersDisabled)
                         ->DataElement(Edit::UIHandlers::Slider, &AreaLightComponentConfig::m_outerShutterAngleDegrees, "Outer angle", "The outer angle of the shutters where the light beam is completely occluded.")
-                            ->Attribute(Edit::Attributes::Min, 0.0f)
-                            ->Attribute(Edit::Attributes::Max, 180.0f)
+                            ->Attribute(Edit::Attributes::Min, 0.5f)
+                            ->Attribute(Edit::Attributes::Max, 90.0f)
                             ->Attribute(Edit::Attributes::Visibility, &AreaLightComponentConfig::SupportsShutters)
                             ->Attribute(Edit::Attributes::ReadOnly, &AreaLightComponentConfig::ShuttersDisabled)